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Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: I. Largo
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by artist: Evaristo Felice Dall'Abaco
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  date published: 2026-07-08T03:39:04Z
audio: Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: I. Largo
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Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: II. Allegro e spiritoso
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  date published: 2026-07-08T03:20:19Z
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Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: III. Grave
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Concerti a piu istrumenti in E Major, Op. 6, No. 2: II. Aria cantabile
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerti a piu istrumenti in E Major, Op. 6, No. 2: II. Aria cantabile
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Concerti a piu istrumenti in E Major, Op. 6, No. 2: III. Allegro assai
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duration: PT3M43S
duration ms: 223320
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by artist: Evaristo Felice Dall'Abaco
by artist: Cappella Coloniensis
by artist: Wilfried Boettcher
in album: Dall'Abaco, E.F.: Concerti for Strings - Opp. 2, 6
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popularity: 1
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATPD50980097
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerti a piu istrumenti in E Major, Op. 6, No. 2: III. Allegro assai
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Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: IV. Allegro
type: MusicRecording
duration: PT1M45S
duration ms: 105893
explicit: false
by artist: Evaristo Felice Dall'Abaco
by artist: Cappella Coloniensis
by artist: Wilfried Boettcher
in album: Dall'Abaco, E.F.: Concerti for Strings - Opp. 2, 6
  type: MusicAlbum
  date published: 2009-08-25
popularity: 2
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17cd4446254a18623a6caf91a26c80ca3b862c6687fff1a74376d5ccf01923f. 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/ATPD50980081.
  date published: 2026-07-31T12:24:41Z
audio: Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: IV. Allegro
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Tchaikovsky: Piano Concerto No. 3 in E-Flat Major, Op. Posth. 75
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duration: PT16M28S
duration ms: 988493
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Philip Fowke
by artist: Wilfried Boettcher
by artist: London Philharmonic Orchestra
in album: Tchaikovsky: Symphony No. 6 "Pathétique" & Piano Concerto No. 3
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isrc code: GBAYD8400115
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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
  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
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7b467f549819caac568ee0294e47198b03f4cb5e6be411fda07c5834949b62. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAYD8400115.
  date published: 2026-07-08T03:22:41Z
audio: Tchaikovsky: Piano Concerto No. 3 in E-Flat Major, Op. Posth. 75
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  additional property: Valence (Positivity)
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Fantasia in C Minor, Op. 80 "Choral Fantasy"
type: MusicRecording
duration: PT20M27S
duration ms: 1227773
explicit: false
by artist: Ludwig van Beethoven
by artist: Alfred Brendel
by artist: Stuttgarter Lehrergesangverein
by artist: Stuttgart Philharmonic Orchestra
by artist: Wilfried Boettcher
in album: Beethoven: The 5 Piano Concertos & Choral Fantasy
  type: MusicAlbum
  date published: 2000-01-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cf9da9ddc5d94e456e06f31cbcd7f69a988b98f093565c6eb018f6eb776e53. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USZGD9500237.
  date published: 2026-07-29T21:09:47Z
audio: Fantasia in C Minor, Op. 80 "Choral Fantasy"
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  additional property: Tempo (BPM)
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Concerto for Guitar, Violin and Orchestra in A Major: II. Adagio
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duration: PT3M32S
duration ms: 212733
explicit: false
by artist: Giuseppe Torelli
by artist: Wilfried Boettcher
by artist: Chamber Orchestra of the Vienna Festspiele
in album: Classical Relaxation
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isrc code: GBKTX1002900
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
  type: PropertyValue
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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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for Guitar, Violin and Orchestra in A Major: II. Adagio
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Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 1. Allegro
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duration: PT6M7S
duration ms: 367595
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Vienna Soloists
by artist: Wilfried Boettcher
in album: Mozart Strings
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  date published: 2017-07-07
genre: classical
genre: classical-era
isrc code: GBAVQ1700276
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: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAVQ1700276
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 4. Rondo: Allegro
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  date published: 2026-07-08T03:53:27Z
audio: Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 4. Rondo: Allegro
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Divertimento in F Major for String Ensemble, K. 138/125c : 1. Allegro
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:22:41Z
audio: Divertimento in F Major for String Ensemble, K. 138/125c : 1. Allegro
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Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 2. Romanza: Andante
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by artist: Wilfried Boettcher
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genre: classical
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  date published: 2026-07-30T18:46:00Z
audio: Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 2. Romanza: Andante
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Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 3. Menuetto: Allegretto
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  date published: 2026-08-01T00:15:43Z
audio: Eine kleine Nachtmusik, Serenade No. 13 for Strings in G Major, K. 525: 3. Menuetto: Allegretto
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6 Ländlerische Tänze, K. 606
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genre: classical
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  date published: 2026-07-31T15:20:15Z
audio: 6 Ländlerische Tänze, K. 606
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Dall'Abaco, E.F.: Concerti for Strings - Opp. 2, 6
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    date published: 2026-07-08T03:53:27Z
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track: Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: I. Largo
track: Concerti a 4 da chiesa in G Minor, Op. 2, No. 5: II. Allegro e spiritoso
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Concerti a 4 da chiesa in D Major, Op. 2, No. 6: I. Allegro assai
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Concerti a 4 da chiesa in D Major, Op. 2, No. 6: III. Allegro e spirito assai
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Concerti a 4 da chiesa in B-Flat Major, Op. 2, No. 9: I. Largo andante
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Concerti a 4 da chiesa in B-Flat Major, Op. 2, No. 9: III. Largo
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Concerti a piu istrumenti in F Major, Op. 6, No. 3: I. Allegro
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Concerti a piu istrumenti in F Major, Op. 6, No. 3: III. Allegro e spirito
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track: Requiem, K. 626: IIIf. Lacrimosa
track: Die Zauberflöte, K. 620, Act II: No. 14, Der Hölle Rache "Queen of the Night Aria"
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Clarinet Concerto in A Major, K. 622: II. Adagio (Cadenza: Neidich)
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Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
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Vesperae solennes de Confessore, K. 339: V. Laudate Dominum
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Symphony No. 35 in D Major, K. 385 "Haffner": IV. Finale. Presto
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Violin Concerto No. 3 in G Major, K. 216: II. Adagio (Cadenza: Levin)
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Exsultate, jubilate, K. 165: IV. Alleluja. Allegro
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Vivaldi, Dowland, Torelli & Carulli: Guitar Works
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Mozart: Piano Concertos Nos. 14 & 25
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Organ Concertos
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Mozart - Posthorn Serenade - Serenata Notturna
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Haydn, M.: Concerto for Organ, Viola and Strings, P. 55 / Symphonies - P. 9, 27, 33
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Dall'Abaco, E.F.: Concerti for Strings - Opp. 2, 6
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Tchaikovsky: Symphony No. 6 "Pathétique" & Piano Concerto No. 3
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Gundula Janowitz - Mozart: Concert Arias
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Classical Masterpieces
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English String Music
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Orfeo 40th Anniversary – Legendary Pianists
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track: Idyll for String Orchestra: V. Adagio
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Quintet in A Major for Clarinet, 2 Violins, Viola and Violincello, K. 581: II. Larghetto
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subject of: OpenTimestamps Proof of Existence
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Nocturnes in B-Flat Major, Op. 9
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by artist: Peter Schmalfuss
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Serenade No. 11 in E-Flat Major, K. 375: III. Adagio
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3 Gymnopedies for Orchestra, No. 1
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Sonata for Two Pianos in D Major, K. 448: II. Andante
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Les Patineurs: Pas de Deux - Cantabile
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Work - Tchaikovsky
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Mozart 111 Vol. 2
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Marche Slave, Op. 31 (1997 Digital Remaster)
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Piano Concerto No. 1 in B flat minor Op. 23: II. Andantino semplice - Prestissimo - Tempo primo
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Piano Concerto No. 1 in B flat minor Op. 23: III. Allegro con fuoco
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The Seasons Op. 37b: II. Février (Carnaval)
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The Seasons Op. 37b: XI. Novembre (Course en Troïka)
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Sleeping Beauty, Op. 66: Introduction (Allegro vivo - Andantino)
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Swan Lake Op. 20, Act II: No. 10, Scène (Moderato)
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Mozart Strings
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111 Classical Guitar Masterpieces
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Michael Haydn Collection, Vol. 1
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English Favourites
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33 - Spiritual Classical Hits
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Classical Guitar
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Summer Classics - Italian Life
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The Menuetto Lounge - 111 Relaxing Masterpieces
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Serenade For Strings
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