Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
type: MusicGroup
genre: opera
popularity: 2
followers: 5
additional property: CopyrightID
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: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/56527fc7-7d54-43ab-ae4c-02c786365df9.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/56527fc7-7d54-43ab-ae4c-02c786365df9.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0311839515c4649f5d80b1774294b7ecb4791fe684d6873d6fdc081d39a7ae39. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56527fc7-7d54-43ab-ae4c-02c786365df9.json and https://artists.proofprofile.net/proofs/artist/56527fc7-7d54-43ab-ae4c-02c786365df9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
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track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): II. So kommen Sie! 's ist niemand hier! (Valencienne/Camille)
  type: MusicRecording
  duration: PT1M6S
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  by artist: Franz Lehár
  by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
  by artist: Hanny Steffek
  by artist: Nicola Gedda
  by artist: Lovro Von Matacic
  by artist: Philharmonia Orchestra
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    type: MusicAlbum
    date published: 2000-07-01
  genre: opera
  isrc code: GBAYC0000994
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T02:30:29Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3108a0307b08805cfefe5f6a6a0090de4862a8241a65728542ff3eaabe025d. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/GBAYC0000994.
    date published: 2026-07-30T02:30:29Z
  audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): II. So kommen Sie! 's ist niemand hier! (Valencienne/Camille)
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    additional property: Mode (Major/Minor)
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    additional property: Speechiness
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    additional property: Valence (Positivity)
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track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Ich bin eine anständ'ge Frau (Valencienne/Camille)
  type: MusicRecording
  duration: PT3M11S
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  explicit: false
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  by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
  by artist: Hanny Steffek
  by artist: Nicola Gedda
  by artist: Lovro Von Matacic
  by artist: Philharmonia Orchestra
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    type: MusicAlbum
    date published: 2000-07-01
  genre: opera
  isrc code: GBAYC0000995
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-30T06:49:13+00:00
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000995
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T07:28:30Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c21b818ef5b233dc067a23270fd63d5f94804f69afaa863e42e59b5f4b9c0aa. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBAYC0000995.
    date published: 2026-07-30T07:28:30Z
  audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Ich bin eine anständ'ge Frau (Valencienne/Camille)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 127.95
    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
      type: PropertyValue
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    additional property: Speechiness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Mode Name
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): XI. Rezitativ: Nein, nein, nein, nein...Mein Freund, Vernunft! (Valencienne/Camille)
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Wie eine Rosenknospe (Valencienne/Camille)
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Sieh dort den kleinen Pavillon (Valencienne/Camille)

Instrumentalness
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value: 0

Liveness
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value: 0.178

Valence (Positivity)
type: PropertyValue
value: 0.192

Loudness (dB)
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value: -23.506

Key Name
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value: C

Mode Name
type: PropertyValue
value: Major

Die lustige Witwe (The Merry Widow) (2000 - Remaster): XI. Rezitativ: Nein, nein, nein, nein...Mein Freund, Vernunft! (Valencienne/Camille)
type: MusicRecording
duration: PT1M29S
duration ms: 89733
explicit: false
by artist: Franz Lehár
by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
by artist: Hanny Steffek
by artist: Nicola Gedda
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c851073235ef60c262aa4214d471ff47a134f9d4537ec379a87ce80f1141376. 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/GBAYC0001016.
  date published: 2026-07-08T03:22:41Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): XI. Rezitativ: Nein, nein, nein, nein...Mein Freund, Vernunft! (Valencienne/Camille)
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  additional property: Tempo (BPM)
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    value: 139.458
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Key Name
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  additional property: Mode Name
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Die lustige Witwe (The Merry Widow) (2000 - Remaster): Wie eine Rosenknospe (Valencienne/Camille)
type: MusicRecording
duration: PT2M22S
duration ms: 142000
explicit: false
by artist: Franz Lehár
by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
by artist: Hanny Steffek
by artist: Nicola Gedda
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-06T22:26:08+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aad5a62f304018589e1be7967a1ac338e14ec0e5afba2ae77b574ceab4f3ab. 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/GBAYC0001017.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Wie eine Rosenknospe (Valencienne/Camille)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Acousticness
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  additional property: Instrumentalness
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    type: PropertyValue
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Die lustige Witwe (The Merry Widow) (2000 - Remaster): Sieh dort den kleinen Pavillon (Valencienne/Camille)
type: MusicRecording
duration: PT2M28S
duration ms: 148493
explicit: false
by artist: Franz Lehár
by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
by artist: Hanny Steffek
by artist: Nicola Gedda
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001018
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:37:45+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0001018
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9b48daabf6dbf838407c11da149aa261afd1717d2315db041b9c46031a357e. 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/GBAYC0001018.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Sieh dort den kleinen Pavillon (Valencienne/Camille)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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