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type: MusicGroup
popularity: 15
followers: 1364
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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 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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  date published: 2026-06-14T11:37:06Z
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album: Opera Fantasies for Violin
  type: MusicAlbum
  date published: 2007-10-30
  track: Carmen, fantasie brillante, Op. 3, No. 3: Fantaisie brillante on Bizet's Carmen, Op. 3, No. 3
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    duration: PT8M14S
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    by artist: Livia Sohn
    in album: Opera Fantasies for Violin
      type: MusicAlbum
      date published: 2007-10-30
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    additional property: CopyrightStatus
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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/HKI190717601
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:29:55Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601e867714906214a45cf9086375fd365e1f5a1dbee74fc17c79a3cad0f8ae6c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190717601 — a six-check JSON result.
      date published: 2026-07-22T05:29:55Z
    audio: Carmen, fantasie brillante, Op. 3, No. 3: Fantaisie brillante on Bizet's Carmen, Op. 3, No. 3
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  track: 3 Duos, Op. 63: 3 Duos on themes from Wagner's operas, Op. 63: No. 3. Lohengrin
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    by artist: Livia Sohn
    in album: Opera Fantasies for Violin
      type: MusicAlbum
      date published: 2007-10-30
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    additional property: OTSBitcoinBlock
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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 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
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      date published: 2026-07-30T19:11:09Z
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  track: Mavra (arr. S. Dushkin): Mavra: Russian Maiden's Song, "Parasha's Aria" (arr. S. Dushkin for violin and piano)
  track: Ainadamar: Desde mi ventana (From My Window) (arr. for 2 violins and piano)
  track: 7 Stucke nach der Dreigroschenoper: No. 1. Moritat vom Mackie Messer
  track: Les pecheurs de perles (The Pearl Fishers), Act I: Au fond du temple saint (arr. for violin, viola and piano)
  track: Le roi d'Ys, Act III: Vainement, ma bien-aimiee, "Aubade" (arr. J. Szigeti for violin)
album: Opera Fantasies for Violin, Vol. 1
album: Opera Fantasies for Violin, Vol. 2

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Mavra (arr. S. Dushkin): Mavra: Russian Maiden's Song, "Parasha's Aria" (arr. S. Dushkin for violin and piano)
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duration: PT3M19S
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by artist: Livia Sohn
in album: Opera Fantasies for Violin
  type: MusicAlbum
  date published: 2007-10-30
isrc code: HKI190717603
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x88b6d2ce0d3268d8a974ccfa7d1c709b0835998128b643bd7f335868a302b797. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190717603 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Mavra (arr. S. Dushkin): Mavra: Russian Maiden's Song, "Parasha's Aria" (arr. S. Dushkin for violin and piano)
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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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Ainadamar: Desde mi ventana (From My Window) (arr. for 2 violins and piano)
type: MusicRecording
duration: PT7M40S
duration ms: 460586
explicit: false
by artist: Livia Sohn
in album: Opera Fantasies for Violin
  type: MusicAlbum
  date published: 2007-10-30
isrc code: HKI190717604
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/HKI190717604
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1dacac0344b9f7ae0d3532e87c5e078b9aecb68b7287d1d6d2425d8c98b9cf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190717604 — a six-check JSON result.
  date published: 2026-07-07T18:39:05Z
audio: Ainadamar: Desde mi ventana (From My Window) (arr. for 2 violins and piano)
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7 Stucke nach der Dreigroschenoper: No. 1. Moritat vom Mackie Messer
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in album: Opera Fantasies for Violin
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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
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9899a89a19102d31e8b99b612620000488bf7e17dd172e9ec33c7811a3ee52ef. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190717605 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: 7 Stucke nach der Dreigroschenoper: No. 1. Moritat vom Mackie Messer
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Les pecheurs de perles (The Pearl Fishers), Act I: Au fond du temple saint (arr. for violin, viola and piano)
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by artist: Livia Sohn
in album: Opera Fantasies for Violin
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  date published: 2007-10-30
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
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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 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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  date published: 2026-07-02T03:55:08Z
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Le roi d'Ys, Act III: Vainement, ma bien-aimiee, "Aubade" (arr. J. Szigeti for violin)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Opera Fantasies for Violin, Vol. 1
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Opera Fantasies for Violin, Vol. 2
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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track: Eugene Onegin, Op. 24: Wohin seid ihr entschwunden "Lensky's Aria" (Arr. L. Auer for Violin & Piano)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T23:52:38Z
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  audio: Nouvelle fantaisie sur Faust, Op. 13 (Version for Violin & Piano)
track: Orfeo ed Euridice: Danse des champs elysées "Melodie" (Arr. F. Kreisler for Violin & Piano)
track: A cremonai hegedűs, Op. 40: Solo de luthier (Version for Violin & Piano)
track: Variations on a Theme of Rossini, H. 290 (Arr. B. Loeb for Violin & Piano)
track: Serse, HWV 40: Aria. Ombra mai fu "Largo" (arr. A. Wilhelmj for Violin & Piano)
track: La forza del destino: Solenne in quest'ora (Arr. B. Loeb for Violin, Viola & Piano)

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
type: DigitalDocument
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318b9d284d91db8dcda58f6f3a5bdedbfc1a8c193f7e5307336f547e7c5eff1c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191509504 — a six-check JSON result.
date published: 2026-07-31T02:19:15Z

Nouvelle fantaisie sur Faust, Op. 13 (Version for Violin & Piano)
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Orfeo ed Euridice: Danse des champs elysées "Melodie" (Arr. F. Kreisler for Violin & Piano)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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A cremonai hegedűs, Op. 40: Solo de luthier (Version for Violin & Piano)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Variations on a Theme of Rossini, H. 290 (Arr. B. Loeb for Violin & Piano)
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Serse, HWV 40: Aria. Ombra mai fu "Largo" (arr. A. Wilhelmj for Violin & Piano)
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La forza del destino: Solenne in quest'ora (Arr. B. Loeb for Violin, Viola & Piano)
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Opera Fantasies for Violin, Vol. 2
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date published: 2016-07-01