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type: MusicGroup
popularity: 6
followers: 6
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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: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24d3a98f3575ff366bff9b802843b08b5aab1a353d8ecfa918150ad278c137a. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efab1e3f-bab4-4840-a2c1-e8cb1f9a669a.json and https://artists.proofprofile.net/proofs/artist/efab1e3f-bab4-4840-a2c1-e8cb1f9a669a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
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track: Bach, JS: Christ lag in Todes Banden, BWV 4: No. 3, Duett. "Den Tod niemand zwingen kunnt"
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  by artist: Johann Sebastian Bach
  by artist: Concentus Musicus Wien
  by artist: Nikolaus Harnoncourt
  by artist: Paul Esswood
  by artist: Soloist of the Wiener Sangerknaben
  by artist: Soloist of the Wiener Sängerknaben
  in album: Bach: Sacred Cantatas, BWV 1 - 14 & 16 - 19
    type: MusicAlbum
    date published: 1971-01-01
  genre: classical
  genre: classical-piano
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  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e02fc7fd32b4615d986db96042e51366b13d6b872fed0658fc279a3d54ab3fb. 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/DEA807102603.
    date published: 2026-07-08T08:56:20Z
  audio: Bach, JS: Christ lag in Todes Banden, BWV 4: No. 3, Duett. "Den Tod niemand zwingen kunnt"
    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: 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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      value: F#
    additional property: Mode Name
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track: Bach, JS: Christ lag in Todes Banden, BWV 4: No. 3, Duett. "Den Tod niemand zwingen kunnt"
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221133
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Concentus Musicus Wien
  by artist: Nikolaus Harnoncourt
  by artist: Paul Esswood
  by artist: Soloist of the Wiener Sangerknaben
  in album: Bach: Sacred Cantatas, BWV 4 - 6
    type: MusicAlbum
    date published: 1994-01-01
  genre: classical
  genre: classical-piano
  isrc code: DEA807102603
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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    value: https://explorer.copyrightchains.com/tx/0x2e02fc7fd32b4615d986db96042e51366b13d6b872fed0658fc279a3d54ab3fb
  additional property: OTSHash
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  additional property: OTSVerificationAPI
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e02fc7fd32b4615d986db96042e51366b13d6b872fed0658fc279a3d54ab3fb. 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/DEA807102603.
    date published: 2026-07-08T03:20:19Z
  audio: Bach, JS: Christ lag in Todes Banden, BWV 4: No. 3, Duett. "Den Tod niemand zwingen kunnt"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.087
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.213
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Bach, JS: Christ lag in Todes Banden, BWV 4: No. 7, Duett. "So feiern wir das hohe Fest"
track: Bach, JS: Wo soll ich fliehen hin, BWV 5: No. 6, Rezitativ. "Ich bin ja nur das kleinste Teil der Welt"
track: Bach, JS: Bleib bei uns, denn es will Abend werden, BWV 6: No. 3, Choral. "Ach bleib bei uns, Herr Jesu Christ"

Bach, JS: Wo soll ich fliehen hin, BWV 5: No. 6, Rezitativ. "Ich bin ja nur das kleinste Teil der Welt"
type: MusicRecording
duration: PT0M47S
duration ms: 47906
explicit: false
by artist: Johann Sebastian Bach
by artist: Concentus Musicus Wien
by artist: Nikolaus Harnoncourt
by artist: Soloist of the Wiener Sangerknaben
in album: Bach: Sacred Cantatas, BWV 4 - 6
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-piano
isrc code: DEA807102706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T10:21:52+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7e299c4fd3d36b04827ea3ea22abda5f6d45f0a081f44e2728e6c3212a11911e
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/DEA807102706
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
  value: verified-cc-db-prod
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e299c4fd3d36b04827ea3ea22abda5f6d45f0a081f44e2728e6c3212a11911e. 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/DEA807102706.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Wo soll ich fliehen hin, BWV 5: No. 6, Rezitativ. "Ich bin ja nur das kleinste Teil der Welt"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  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: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.338
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.836
  additional property: Key Name
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  additional property: Mode Name
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Bach, JS: Bleib bei uns, denn es will Abend werden, BWV 6: No. 3, Choral. "Ach bleib bei uns, Herr Jesu Christ"
type: MusicRecording
duration: PT4M3S
duration ms: 243693
explicit: false
by artist: Johann Sebastian Bach
by artist: Concentus Musicus Wien
by artist: Nikolaus Harnoncourt
by artist: Soloist of the Wiener Sangerknaben
in album: Bach: Sacred Cantatas, BWV 4 - 6
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200657a6765f4a984443eb437514e1571b91fc1202a527fd28af81b0cab11d13. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEA807102803.
  date published: 2026-07-31T21:25:57Z
audio: Bach, JS: Bleib bei uns, denn es will Abend werden, BWV 6: No. 3, Choral. "Ach bleib bei uns, Herr Jesu Christ"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  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
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Key Name
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isrc code: DEA807102803
additional property: CopyrightID
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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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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  value: https://blockstream.info/api/block-height/960468
additional property: OTSTimestamp
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  value: 2026-07-31T21:25:57+00:00
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

Instrumentalness
type: PropertyValue
value: 0.116

Liveness
type: PropertyValue
value: 0.124

Valence (Positivity)
type: PropertyValue
value: 0.059

Loudness (dB)
type: PropertyValue
value: -21.669

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Bach, JS: Christ lag in Todes Banden, BWV 4: No. 7, Duett. "So feiern wir das hohe Fest"
type: MusicRecording
duration: PT2M7S
duration ms: 127760
explicit: false
by artist: Johann Sebastian Bach
by artist: Concentus Musicus Wien
by artist: Nikolaus Harnoncourt
by artist: Soloist of the Wiener Sangerknaben
by artist: Kurt Equiluz
in album: Bach: Sacred Cantatas, BWV 4 - 6
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-piano
isrc code: DEA807102607
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:24:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3436461d1875fcaa8477806807063093eb4a8432aae28edc57cd25fdcdeb25a
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807102607
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3436461d1875fcaa8477806807063093eb4a8432aae28edc57cd25fdcdeb25a. 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/DEA807102607.
  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Christ lag in Todes Banden, BWV 4: No. 7, Duett. "So feiern wir das hohe Fest"
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  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.299
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  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
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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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