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  track: Gianni Schicchi: O mio babbino caro
  track: Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
  track: Turandot, Act III: Nessun dorma!
  track: Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
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  track: Madama Butterfly, Act II: Humming Chorus
  track: La boheme, Act I: Che gelida manina
  track: La Wally, Act I: Ebben? Ne andro lontana
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track: Il trovatore: Act II: Vedi, le fosche notturne

Il trovatore: Act I: Di tale amor che dirsi
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  date published: 2026-06-13T15:41:10Z
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Manon Lescaut, Act I: Donna non vidi mai simile a questa!
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Gianni Schicchi: O mio babbino caro
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bd9a92eecd30dc32a0c2a9f4ec88d7fe97feb2f8865ded3b2953c4035d13e3. 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/HKI190348120.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
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Turandot, Act III: Nessun dorma!
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duration: PT2M31S
duration ms: 151920
explicit: false
by artist: Giacomo Puccini
by artist: Lando Bartolini
by artist: Bilbao Choral Society
by artist: Malaga Philharmonic Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc910e47fb31b3fd2fd5f9fcb401bc07461314c13406b10a6fc5d460f81bfc252. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190159310.
  date published: 2026-07-07T18:39:05Z
audio: Turandot, Act III: Nessun dorma!
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Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
type: MusicRecording
duration: PT5M0S
duration ms: 300000
explicit: false
by artist: Georges Bizet
by artist: Alan Titus
by artist: Graciela Alperyn
by artist: Slovak Philharmonic Chorus
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
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  date published: 2012-10-01
genre: classical
genre: opera
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8883b1a6d19fb9880e337a5cf3cd641bfb1e3d798039f554e3e0e6905c9b83a. 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/HKI199220606.
  date published: 2026-07-08T03:22:41Z
audio: Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
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Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache kocht in meinem Herzen
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duration: PT2M51S
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by artist: Wolfgang Amadeus Mozart
by artist: Hellen Kwon
by artist: Budapest Failoni Chamber Orchestra
by artist: Michael Halasz
in album: Opera - 50 of the Best
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genre: classical
genre: classical-era
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca1f93242ab74332c23515d22d541842226c49c73cefbb40ab13710d92e888b. 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/HKI199490208.
  date published: 2026-07-08T08:56:20Z
audio: Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache kocht in meinem Herzen
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Norma: Norma, Act I: Casta diva
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duration: PT10M2S
duration ms: 602493
explicit: false
by artist: Vincenzo Bellini
by artist: Marina Mescheriakova
by artist: Slovak Philharmonic Chorus
by artist: Slovak Radio Symphony Orchestra
by artist: Michael Halasz
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
genre: opera
isrc code: HKI190316406
additional property: CopyrightID
additional property: CopyrightStatus
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Norma: Norma, Act I: Casta diva
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Madama Butterfly, Act II: Humming Chorus
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duration: PT2M47S
duration ms: 167240
explicit: false
by artist: Giacomo Puccini
by artist: Slovak Philharmonic Choir
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI199287411
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
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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 0x9b71b6ec6e797b1206620e6ac1341eadf329256192619da73e4306d7e53040d0. 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/HKI199287411.
  date published: 2026-07-08T03:20:19Z
audio: Madama Butterfly, Act II: Humming Chorus
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  additional property: Tempo (BPM)
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La boheme, Act I: Che gelida manina
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duration: PT4M22S
duration ms: 262666
explicit: false
by artist: Giacomo Puccini
by artist: Jonathan Welch
by artist: Slovak Radio Symphony Orchestra
by artist: Will Humburg
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI199092209
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
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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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  date published: 2026-07-08T03:22:41Z
audio: La boheme, Act I: Che gelida manina
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  additional property: Tempo (BPM)
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La Wally, Act I: Ebben? Ne andro lontana
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duration: PT3M25S
duration ms: 205200
explicit: false
by artist: Alfredo Catalani
by artist: Miriam Gauci
by artist: Belgian Radio and Television Philharmonic Orchestra
by artist: Alexander Rahbari
in album: Opera - 50 of the Best
  type: MusicAlbum
  date published: 2012-10-01
genre: opera
isrc code: HKI199310904
additional property: CopyrightID
additional property: CopyrightStatus
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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: La Wally, Act I: Ebben? Ne andro lontana
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Verdi: Trovatore (Il) (Highlights)
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date published: 2000-09-02

The Ultimate Verdi Opera Album
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date published: 2010-12-14

The Best Of Opera Volume 4
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date published: 2000-05-21

50 of the Best: Verdi
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date published: 2011-11-15

Verdi (The Very Best Of)
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date published: 2006-04-18

Become an Instant Expert: Verdi
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O Mio Babbino Caro - Famous Soprano Arias From Italian Opera
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
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track: I puritani, Act II: Qui la voce sua soave… Vien, diletto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T14:04:01Z
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track: La boheme: La Boheme, Act I: Si, mi chiamano Mimi
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  subject of: OpenTimestamps Proof of Existence
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track: La boheme, Act II: Quando m'en vo' soletta, "Musetta's Waltz"
track: La Wally, Act I: Ebben? Ne andro lontana
track: Andrea Chenier, Act III: La mamma morta
track: Tosca: Tosca, Act II: Vissi d'arte
track: La traviata, Act I: Ah fors' e lui
track: La traviata, Act I: Sempre libera
track: La Rondine: La rondine, Act I: Chi il bel sogno di Doretta
track: Il barbiere di Siviglia, Act I: Una voce poco fa
track: Manon Lescaut, Act II: In quelle trine morbide
track: La forza del destino, Act IV: Pace, pace, mio Dio

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OTSTimestamp
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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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

La boheme: La Boheme, Act I: Si, mi chiamano Mimi
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La boheme, Act II: Quando m'en vo' soletta, "Musetta's Waltz"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
audio: La boheme, Act II: Quando m'en vo' soletta, "Musetta's Waltz"
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La Wally, Act I: Ebben? Ne andro lontana
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: La Wally, Act I: Ebben? Ne andro lontana
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Andrea Chenier, Act III: La mamma morta
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subject of: OpenTimestamps Proof of Existence
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Tosca: Tosca, Act II: Vissi d'arte
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La traviata, Act I: Ah fors' e lui
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La traviata, Act I: Sempre libera
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La Rondine: La rondine, Act I: Chi il bel sogno di Doretta
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Il barbiere di Siviglia, Act I: Una voce poco fa
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Manon Lescaut, Act II: In quelle trine morbide
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La forza del destino, Act IV: Pace, pace, mio Dio
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Best of Opera, Vol. 5
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100 Greatest Romantic Classics
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Luigi Boccherini: Essential Works
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Musica sacra (The Golden Classics Collection)
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Best Of Opera, Vol. 4
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Best Of Opera Ii
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Il trovatore: Act II: Vedi, le fosche notturne
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