Klára Würtz
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genre: classical
genre: classical piano
description: Klára Würtz (born 1965) is a Hungarian classical pianist. Biography Würtz was burn in Budapest, Hungary, in 1965. She studied at the Franz Liszt Academy of Music. She won the International Ettore P
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  track: Sonate Pathetique, Op. 13: II. Adagio
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album: Sleep Music
album: 150 Years Rachmaninoff
album: Hungarian Songs: Bartók, Kodály & Ligeti
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album: Tchaikovsky, Rachmaninoff: Piano Trio in A Minor, Trio Élégiaque
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album: Piano Music for Children: Kinderszenen, Children's Corner, Für Elise, Rondo alla turca
album: Schubert: Piano Sonata in B-Flat Major, D. 960 & Piano Sonata in A Major, D. 664
album: Schumann: String Quartet - Piano Quintet
album: Top 50 Most Popular Classics for Kids
album: Brahms: Violin Sonatas
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album: Beethoven: Complete Cello Sonatas & Variations
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album: The Bartók Album
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album: Schubert Impromptus: Klára Würtz
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album: Mozart: Piano Concertos No. 9 & 21
album: Classical Lullabies
album: Klára Würtz: Celebration Vol. 5
album: Klára Würtz: Celebration Vol. 3
album: Klára Würtz: Celebration Vol. 2
album: Klára Würtz: Celebration Vol. 1
album: Quintessence Mozart: Complete Piano Sonatas
track: Violin Sonata No. 5 in F, Op. 24 'Spring': II. Adagio molto Espressivo
track: Violin Sonata No. 5 in F, Op. 24 'Spring': IV. Rondo: Allegro ma non Troppo
track: Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace - Andante - Vivace di più - Andante - Vivace
track: Violin Sonata No. 10 in G, Op. 96: II. Adagio Espressivo
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track: Violin Sonata, L.140: II. Intermède, fantasque et léger
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track: Violin Sonata No. 2 in G Major, M.77: I. Allegretto
track: Violin Sonata No. 2 in G Major, M.77: II. Blues. Moderato
track: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
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track: Sonata No. 3 in D Minor, Op. 108: II. Adagio
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Marosszék Dances
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In the Mist: I. Andante
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Heavenly Romanticism
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    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Melancholy of France
type: MusicRecording
duration: PT3M52S
duration ms: 232764
explicit: false
by artist: Maurice Ravel
by artist: Klára Würtz
by artist: Janáček Philharmonic Orchestra
by artist: Theodore Kuchar
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 3
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: NLY332202319
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:05:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8daaf93a1c6b961db7a7d39db77c8291a592becaad018d1b8900b533b68b8121
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202319
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daaf93a1c6b961db7a7d39db77c8291a592becaad018d1b8900b533b68b8121. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202319.
  date published: 2026-07-08T03:53:27Z
audio: Melancholy of France
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.671
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.087
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.196
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Russian Romance
type: MusicRecording
duration: PT2M3S
duration ms: 123467
explicit: false
by artist: Sergei Rachmaninoff
by artist: Klára Würtz
by artist: Ukraine National Symphony Orchestra
by artist: Vladimir Sirenko
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 7
genre: classical
genre: classical-piano
isrc code: NLY332202325
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:29:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11fa4ab947774e576e0c9a365d930da1b93243cfabf5a12e2508a4cf1b94599e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202325
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fa4ab947774e576e0c9a365d930da1b93243cfabf5a12e2508a4cf1b94599e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202325.
  date published: 2026-07-08T03:53:27Z
audio: Russian Romance
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.179
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.159
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.648
  additional property: Liveness
    type: PropertyValue
    value: 0.295
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -39.372
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: III. Asszonyok, asszonyok
type: MusicRecording
duration: PT0M58S
duration ms: 58040
explicit: false
by artist: Béla Bartók
by artist: Katalin Károlyi
by artist: Klára Würtz
in album: Hungarian Songs: Bartók, Kodály & Ligeti
  type: MusicAlbum
  date published: 2023-06-30
isrc code: NLY332301197
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:14:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x829f3d71f2d89a6b2451c92dd038a11a33a36be53355b5ce4e24af9bc4235ad9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332301197
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829f3d71f2d89a6b2451c92dd038a11a33a36be53355b5ce4e24af9bc4235ad9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332301197.
  date published: 2026-07-08T08:56:20Z
audio: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: III. Asszonyok, asszonyok
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.52
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.571
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.813
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.846
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.314
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: II. Istenem, istenem
type: MusicRecording
duration: PT1M19S
duration ms: 79360
explicit: false
by artist: Béla Bartók
by artist: Katalin Károlyi
by artist: Klára Würtz
in album: Hungarian Songs: Bartók, Kodály & Ligeti
  type: MusicAlbum
  date published: 2023-06-30
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b41e081c35cceeeb4c2556e39abaf89e74fe2426a2b9270d615b6e6134ba34b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332301196.
  date published: 2026-07-31T13:04:34Z
audio: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: II. Istenem, istenem
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.659
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.292
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.079
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.127
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.76
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLY332301196
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960403
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:04:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332301196

Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: IV. Annyi bánat az szűvemen
type: MusicRecording
duration: PT1M8S
duration ms: 68413
explicit: false
by artist: Béla Bartók
by artist: Katalin Károlyi
by artist: Klára Würtz
in album: Hungarian Songs: Bartók, Kodály & Ligeti
  type: MusicAlbum
  date published: 2023-06-30
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc950d6bdf440d205e912e2fd849cb22c5923e8ea8c1122d7530b77df2482e38d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332301198.
  date published: 2026-07-31T12:24:41Z
audio: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: IV. Annyi bánat az szűvemen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.548
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.352
  additional property: Energy
    type: PropertyValue
    value: 0.016
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.13
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.114
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.761
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: NLY332301198
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960397
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332301198

Goldberg Variations, BWV 988: I. Aria
type: MusicRecording
duration: PT4M27S
duration ms: 267306
explicit: false
by artist: Johann Sebastian Bach
by artist: Klára Würtz
in album: J.S. Bach: Goldberg Variations
  type: MusicAlbum
  date published: 2022-01-28
genre: classical
genre: classical-piano
isrc code: NLY332105025
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:02:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfff26f4e898fb63eeb428bcce5ed2858092a505d3b74508b46769936714d7d60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957013
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332105025
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T08:31:11Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957011
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T08:25:35+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff26f4e898fb63eeb428bcce5ed2858092a505d3b74508b46769936714d7d60. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332105025.
  date published: 2026-07-07T08:31:11Z
audio: Goldberg Variations, BWV 988: I. Aria
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.284
  additional property: Energy
    type: PropertyValue
    value: 0.028
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.913
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.297
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.158
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Concerto in G Major, M. 83: II. Adagio assai (4)
type: MusicRecording
duration: PT3M45S
duration ms: 225958
explicit: false
by artist: Maurice Ravel
by artist: Klára Würtz
by artist: Janáček Philharmonic Orchestra
by artist: Theodore Kuchar
in album: Ravel: Piano Concerto
  type: MusicAlbum
  date published: 2021-03-15
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: NLY332101110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:49:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc44caf80bb5c0ba34fa171184c7a3084228ed3f07311644059b0d100009f468
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957050
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101110
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:41:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957050
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T14:41:13+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc44caf80bb5c0ba34fa171184c7a3084228ed3f07311644059b0d100009f468. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332101110.
  date published: 2026-07-07T14:41:13Z
audio: Piano Concerto in G Major, M. 83: II. Adagio assai (4)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
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    value: 5
  additional property: Danceability
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    value: 0.131
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.927
  additional property: Liveness
    type: PropertyValue
    value: 0.086
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Piano Concerto in G Major, M. 83: I. Allegramente (1)
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Piano Concerto in G Major, M. 83: II. Adagio assai (3)
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Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato (2)
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (4)
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Piano Concerto No. 2 in C Minor, Op. 18: III. Allegro scherzando (3)
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Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato (1)
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Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato (3)
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Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato (4)
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (1)
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (2)
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (3)
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Piano Concerto No. 2 in C Minor, Op. 18: III. Allegro scherzando (1)
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Piano Concerto No. 2 in C Minor, Op. 18: III. Allegro scherzando (2)
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Piano Concerto No. 2 in C Minor, Op. 18: III. Allegro scherzando (4)
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Violin Sonata, L.140: I. Allegro vivo
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Sonatina for Cello and Piano
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Adagio for Cello and Piano
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Sonata, Op. 4: I. Fantasia
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Sonata, Op. 4: II. Allegro con spirit
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Piano Sonata in B-Flat Major, D. 960: III. Scherzo, allegro vivace con delicatezza
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Kindersszenen, Op. 15: I. Von fremden Ländern und Menschen
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Piano Sonata No. 11 in A Major, K. 331: III. Alla turca. Allegretto
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Piano Sonata No. 11 in A Major, K. 331: III. Alla Turca. Allegretto
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2 Konzertetüden, S. 145: No. 1 in A-Flat Major "Waldesrauschen"
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Sonate facile in C Major, K. 545: I. Allegro
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Waldszenen, Op. 82: No. 7, Vogel als Prophet
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
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3 Hungarian Folksongs from Csik, Sz. 35a
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Mikrokosmos, Sz. 107: VI. —
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Liebestraum No. 3, S. 541
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Violin Sonata No. 5 in F, Op. 24 'Spring': II. Adagio molto Espressivo
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Violin Sonata No. 5 in F, Op. 24 'Spring': IV. Rondo: Allegro ma non Troppo
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Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace - Andante - Vivace di più - Andante - Vivace
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Violin Sonata No. 10 in G, Op. 96: II. Adagio Espressivo
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Violin Sonata No. 2 in G Major, M.77: III. Perpetuum mobile, allegro
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Violin Sonata No. 5 in F, Op. 24 'Spring': III. Scherzo: Allegro Molto
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Sonata No. 2 in A Major, Op. 100: III. Allegretto grazioso, quasi Andante
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Violin Sonata No. 10 in G, Op. 96: III. Scherzo: Allegro
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Violin Sonata, L.140: II. Intermède, fantasque et léger
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Violin Sonata, L.140: III. Finale, très animé
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Violin Sonata No. 2 in G Major, M.77: I. Allegretto
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Violin Sonata No. 2 in G Major, M.77: II. Blues. Moderato
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Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
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Violin Sonata in A Major, FWV 8: IV. Allegretto poco mosso
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Sonata No. 3 in D Minor, Op. 108: II. Adagio
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Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con Sentimento
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Sonate Pathetique, Op. 13: II. Adagio
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
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by artist: Ludwig van Beethoven
by artist: Staatskapelle Dresden
by artist: Herbert Blomstedt
in album: Beethoven: Adagios
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3be9815b38570a6b73027ca73a6c49769edd9c65d078ef54c30fda34930d5da. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331308827.
  date published: 2026-07-08T08:56:20Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Sleep Music
type: MusicAlbum
date published: 2022-12-14
track: Death in Venice
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  by artist: Junge Deutsche Philharmonie
  by artist: Rudolf Barshai
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    type: MusicAlbum
    date published: 2022-12-14
  popularity: 6
  genre: classical
  genre: orchestra
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202308
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98479860b3281f4295c0cf551f9326605bf4768e88016ecefca821cda310599. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202308.
    date published: 2026-07-06T07:53:57Z
  audio: Death in Venice
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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track: Enfantillages pittoresques: II. Berceuse
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  by artist: Cristina Ariagno
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    type: MusicAlbum
    date published: 2022-12-14
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  genre: classical
  genre: classical-piano
  genre: impressionism
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  additional property: CopyrightID
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d1d2a9e294afdd3ec6aad7e60bfba9320fa5e1c884a966531d742aabe8f1de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331011539.
    date published: 2026-07-08T03:20:19Z
  audio: Enfantillages pittoresques: II. Berceuse
    type: AudioObject
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    additional property: Valence (Positivity)
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track: Heavenly Romanticism
track: River Flows in You
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  duration: PT3M30S
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  by artist: Yiruma
  by artist: Jeroen van Veen
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    type: MusicAlbum
    date published: 2022-12-14
  popularity: 5
  genre: neo-classical
  genre: new-age-piano
  genre: korean-instrumental
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: River Flows in You
track: Symphonic Art
track: Melancholy of France
track: Spiritual Fantasy
track: Meditating Orchestra
track: Russian Romance

CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
type: PropertyValue
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d6cc89b5ee92fa75810350dfc456286b84cf4389824e266e1851f4392b640. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332001446.
date published: 2026-06-13T15:41:10Z

River Flows in You
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Symphonic Art
type: MusicRecording
duration: PT2M36S
duration ms: 156667
explicit: false
by artist: Ludwig van Beethoven
by artist: Staatskapelle Dresden
by artist: Herbert Blomstedt
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLY332202316
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40696f442c879621996c05356f05cef435c4373f5d14d49951365337c4740d4f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202316.
  date published: 2026-07-08T03:53:27Z
audio: Symphonic Art
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Spiritual Fantasy
type: MusicRecording
duration: PT3M7S
duration ms: 187544
explicit: false
by artist: Frédéric Chopin
by artist: Paolo Giacometti
by artist: Rotterdam Young Philharmonic
by artist: Arie Van Beek
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 4
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: NLY332202321
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5052ebb7019b7514723da2d027a443b576c1d888cce50575f653be58e509926. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202321.
  date published: 2026-07-08T03:20:19Z
audio: Spiritual Fantasy
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Meditating Orchestra
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duration: PT2M58S
duration ms: 178676
explicit: false
by artist: Anton Bruckner
by artist: Rundfunk-Sinfonieorchester Berlin
by artist: Heinz Rögner
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 5
genre: classical
genre: orchestra
isrc code: NLY332202324
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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150 Years Rachmaninoff
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Hungarian Songs: Bartók, Kodály & Ligeti
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Franck: Chamber Music Masterpieces
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Rondo Alla Turca
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Träumerei
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Rosamunde Impromptu
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French Violin Sonatas
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Ravel: Piano Concerto
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Schubert: The Three Piano Sonatas in A Minor
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Schubert: Complete Impromptus
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Schumann: Piano Concertos
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Schumann: The Three Piano Sonatas
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Schubert: The Last Three Piano Sonatas
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Rachmaninoff: Piano Concerto No. 2
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Schumann: The Great Piano Works, Vol. 1
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20th Century Piano Sonatas, Vol. 2
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Debussy, Ravel, Franck: French Violin Sonatas
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Tchaikovsky, Rachmaninoff: Piano Trio in A Minor, Trio Élégiaque
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Kodaly: Music for Cello
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Piano Music for Children: Kinderszenen, Children's Corner, Für Elise, Rondo alla turca
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Schubert: Piano Sonata in B-Flat Major, D. 960 & Piano Sonata in A Major, D. 664
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Top 50 Most Popular Classics for Kids
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Brahms: Violin Sonatas
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Bozay: Piano Sonatas Nos. 1 and 2 / Violin Sonata / Cello Sonata
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Top 50 Most Popular Classical Piano
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4 Impromptus, D. 935: II. Impromptu in A-Flat Major
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6 Lieder, Op. 57: V. Venetianisches Gondellied
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Intermezzo in E-Flat Major, Op. 117 No. 1
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Intermezzo in B-Flat Minor, Op. 117 No. 2
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Piano Sonata No. 14, Op. 27 No. 2: II. Allegretto
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Lieder ohne Worte, Op. 62: VI. Allegretto grazioso "Frühlingslied"
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Deux Arabesques, L. 66: I. Première Arabesque
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Moments musicaux, D. 780, Op. 90: IV. Moderato
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Sonate Pathetique, Op. 13: II. Adagio
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Klavierstück in E-Flat Major, D. 946, No. 2
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4 Impromptus, D. 899, Op. 90: III. Impromptu in G-Flat Major
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Consolation in D-Flat Major, S. 172
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Clair de Lune, L. 32
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Prelude in D-Flat Major, Op. 28 No. 15, "Regentropfen"
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Nocturne in E-Flat Major, Op. 9 No. 2
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Lyric Pieces, Op. 12: IV. Dance of the Fairies
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by artist: Håkon Austbø
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Lyric Pieces, Op. 12: IV. Dance of the Fairies
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Lyric Pieces, Op. 54: III. March of the Dwarfs
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by artist: Håkon Austbø
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Lyric Pieces, Op. 54: III. March of the Dwarfs
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Waltzes, Op. 64: No. 1, Waltz in D-Flat Major "Minute Waltz"
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by artist: Martijn van den Hoek
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T00:56:13Z
audio: Waltzes, Op. 64: No. 1, Waltz in D-Flat Major "Minute Waltz"
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3 Gymnopédies: No. 1, Lent et douloureux
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: 3 Gymnopédies: No. 1, Lent et douloureux
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Gnossiennes Nos. 4-6: Gnossienne No. 5
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by artist: Håkon Austbø
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Gnossiennes Nos. 4-6: Gnossienne No. 5
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Impromptu No. 1 in A-Flat Major, Op. 29
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by artist: Pieter Van Winkel
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genre: classical
genre: early-romantic-era
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Impromptu No. 1 in A-Flat Major, Op. 29
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Ballade No. 3 in A-Flat Major, Op. 47
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by artist: Pieter Van Winkel
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genre: classical
genre: early-romantic-era
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subject of: OpenTimestamps Proof of Existence
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Fantasie Impromptu No. 4 in C-Sharp Minor, Op. 66
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Great Piano Concertos
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Beethoven: Complete Cello Sonatas & Variations
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Beethoven: Complete Violin Sonatas
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The Bartók Album
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track: Divertimento, K. 334: Menuet
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track: 2 Morceaux, Op. 10: No. 2, Humoresque in G Major. Menuet
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Guitarre, Op. 45 No. 2
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Cello Rhapsody
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Bartok: Piano Concerto No. 3 - Ravel: Piano Concerto in G Major
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Mozart: Piano Concertos No. 9 & 21
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Classical Lullabies
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Klára Würtz: Celebration Vol. 5
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Klára Würtz: Celebration Vol. 3
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Klára Würtz: Celebration Vol. 2
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Klára Würtz: Celebration Vol. 1
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Quintessence Mozart: Complete Piano Sonatas
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Klára Würtz: Celebration Vol. 4
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Bozay: Piano Sonatas Nos. 1 and 2 / Violin Sonata / Cello Sonata
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Violin Sonata, L.140: I. Allegro vivo
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