1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397a1aef5bd4ab6bbb989a2086836a614444f2ec6b2cec54785cd93f4be3653a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd198512-15db-48fb-8240-a31c4eb53cf8.json and https://artists.proofprofile.net/proofs/artist/dd198512-15db-48fb-8240-a31c4eb53cf8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Well-Tempered Clavier, Book 1, BWV 846-869 / Prelude & Fugue in C Major, BWV 846: I. Prelude
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa811d475d38575ef4c6417b2dfee78533cd89bf33ba44f064278aa0d799e1fb2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4SFBV7SRNG2e2kyL1F6kjU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4SFBV7SRNG2e2kyL1F6kjU.
{"copyright_id":"0x88c7ab52de33b89f36131f577a85c366d4b4513164418d177cf94d5ebfa4d1b6","isrc":"DEN961801800","name":"Für Elise, Bagatelle in A Minor, WoO 59","registered_at":"2026-06-04T06:56:47Z","spotify_id":"5PYkhnP4NZQqJqw3xruLym","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c7ab52de33b89f36131f577a85c366d4b4513164418d177cf94d5ebfa4d1b6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5PYkhnP4NZQqJqw3xruLym.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5PYkhnP4NZQqJqw3xruLym.
{"copyright_id":"0x2cf65eed75928004ad9e6a9ccc85cf06e4dcd52426466f5156ca0dd99ac623c8","isrc":"DEN961801820","name":"The Departure","registered_at":"2026-06-04T07:11:58Z","spotify_id":"2ScOfiTWqJRG0kmbNpnynH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf65eed75928004ad9e6a9ccc85cf06e4dcd52426466f5156ca0dd99ac623c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ScOfiTWqJRG0kmbNpnynH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ScOfiTWqJRG0kmbNpnynH.
Lieder ohne Worte, Op. 67: No. 4 in C Major. Presto "Spinning Song"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcb0763917e9f8d4c069ef08ea581102a940585416252841c388b7ee5a2966b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/051CbRhRPoUy4x2xy7fsAK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/051CbRhRPoUy4x2xy7fsAK.
Suite bergamasque, CD 82: III. Clair de lune
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b49be2066d9620b704dbf8b56b101cdebd8e0bddfd95025f080e723e57e177. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1TR2YzbmK96cbIRHjXs9ul.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1TR2YzbmK96cbIRHjXs9ul.
Children's Corner, CD 119: I. Doctor Gradus ad Parnassum
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241b27cf21142b595a55db0bc7263cc27ce8d100a3632315bdcddba3f910e751. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/40Y2QAh8yFmMp8Wi92p5wo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/40Y2QAh8yFmMp8Wi92p5wo.
24 Préludes, Op. 28: No. 15 in D Flat Major. Sostenuto "Raindrop"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77713ce368e96bcd3977b1d7cdef981428a06a55b34b79404831fdf6220fce9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6rI95bUx4nmUEqWYLg6q4a.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6rI95bUx4nmUEqWYLg6q4a.
Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f466860eaf7c05a959d09b680dcaa794d5ab8b7882c88c5dd77f2943996828e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/51xHvAUYQfhY29GcGlBM0n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/51xHvAUYQfhY29GcGlBM0n.
Sonatina No. 1 in C Major, Op. 36: II. Andante
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5af024db7ad9423d5a58ddc9bd5ac79a0746a551661fde9393c78e20916fab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2UuP0UYLZCSeAShLSSYdJT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2UuP0UYLZCSeAShLSSYdJT.
The School of Velocity, Op. 299: No. 1 in C Major. Presto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828cb000a3038695ebbb4edc927f0b5797494d7037af4adbe2afaecfd2104cc7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Fq2TXNaPkxnFnvLpl6zXk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Fq2TXNaPkxnFnvLpl6zXk.
6 Pieces for Piano, Vol. 2: No. 4, La valse d'Amélie
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593df0c2e02211c313d7594d618cee1b689a4fbd750a8da9a6ccab24e737c8ac. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/458oVUXR68n6i3BlAM7a6n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/458oVUXR68n6i3BlAM7a6n.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d883e3a99937404e37c8aacb426e2c5b36ec67a653b3f288755117aed7d591. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6HNUntao7jCtKR2cGKgqn0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6HNUntao7jCtKR2cGKgqn0.
6 Moments musicaux, Op. 94, D. 780: No. 3 in F Minor. Allegro moderato
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d3bbd8c7e8d3cbcf8352ba399e80cd4082a0ca558ba0063e38d896f4577f12. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ljl3b7SKCG1W8h8XpQE8h.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ljl3b7SKCG1W8h8XpQE8h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a60a65eff1550487728030713433af9c1de7f1d3e0144af81edbff24839dfb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2C9IBLwFL8uyY5kpUXPQSM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2C9IBLwFL8uyY5kpUXPQSM.
Album für die Jugend, Op. 68 / Pt. 1: Für Kleinere: No. 8, Wilder Reiter
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a58df7c1240363c5c23d60cb92f549fdb6580d8612dea5ad2f044a8b22bda2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7yQncCbmVIUYC3l9gpvOZF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7yQncCbmVIUYC3l9gpvOZF.
{"copyright_id":"0xd67a348cf9629f635eb61ada7caf70f1dc5ee43e4bd8e9b53ec1479471a7fb9e","isrc":"DEN961801890","name":"Villageoises, FP 65: No. 2, Staccato","registered_at":"2026-06-08T02:16:50Z","spotify_id":"6xzy2Q8tdHQFRUqsFsQBKF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67a348cf9629f635eb61ada7caf70f1dc5ee43e4bd8e9b53ec1479471a7fb9e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6xzy2Q8tdHQFRUqsFsQBKF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6xzy2Q8tdHQFRUqsFsQBKF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61764a755910599819870c2b0d114146c35fe57f3d37e939848fb7d95fc0998. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04WtM8HBVMGUY3r5LEX4Dr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/04WtM8HBVMGUY3r5LEX4Dr.
Merry Christmas Mr. Lawrence (Arr. for Piano)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c989d77d1ae3dfb1877f1c2aae79603358e3d3e3f7aff7ed3fe1039f6722f06. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7MyrCmMvLbSHzdcSL2DQDh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7MyrCmMvLbSHzdcSL2DQDh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc907ba3e5ce5ab53c0390a9a85e33c257c8092b6995671e87260b19161fe22. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2UcElfPTg3OhgksZILHrfT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2UcElfPTg3OhgksZILHrfT.
12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Tema "Twinkle, Twinkle, Little Star"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f52b7c5121fea7512d5b46f98f0ac6b8fc23ba33d38ac698e576ad1cc8e651a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3jKhFXNwPOyAD0WrQGmRAJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3jKhFXNwPOyAD0WrQGmRAJ.
12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 1
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4e836a2e9e6dbdfa03aa13345feae6a80a143d0d4c25d268494c0f81947d62. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ESuJaKignCDNOFqtELl5p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ESuJaKignCDNOFqtELl5p.
12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 2
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4bb165158b83a669b337c6cced57121498fd6a17cac653eb32e4e7eb0e36d2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5RetsQzjYJaReVDa4I8lKf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5RetsQzjYJaReVDa4I8lKf.
12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 3
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140fe501f965c6507693bb9679bb5fc97de749b3d05f2597331ecc68385add2f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/01krwPhJ04YilFViTRPU1O.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/01krwPhJ04YilFViTRPU1O.
12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 4
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 5
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 6
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 7
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 8
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 9
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 10
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 11
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12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265: Variation No. 12
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Minuet No. 1 in G Major (Formerly Attrib. J.S. Bach as BWV Anh. 114)
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Wild Swans Suite: II. Eliza Aria (Arr. for Piano)
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Jasmine Flower (Arr. Schindler for Piano)
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Danzas Argentinas, Op. 2: II. Danza de la moza donosa
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Limu, limu, lima (Arr. Schindler for Piano)
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Variations on an Original Theme, Op. 36 "Enigma": No. 9, Nimrod (Version for Piano)
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Leoncavallo: La Nuit de mai - Opera Arias & Songs
Orchestra del Teatro Comunale di Bologna
La Nuit de mai: 3. Vivo - Mouv. de Valse
La Nuit de mai: 8. Assai Sostenuto - Quasi Adagio
La Nuit de mai: 9. Andante Sostenuto Assai
La Nuit de mai: 10. Andante agitato assai
La Nuit de mai: 11. Largamente quasi recitativo
La Nuit de mai: 12. Andante Mosso e Solenne
Dos Oruguitas [aus "Encanto" (Feat. Sebastián Yatra)]
Dos Oruguitas - aus "Encanto" (Feat. Sebastián Yatra)
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Die Schöne und das Biest - aus "Die Schöne und das Biest"
Lass jetzt los - aus "Die Eiskönigin – Völlig unverfroren"
Probier's mal mit Gemütlichkeit - aus "Das Dschungelbuch"
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Spiegelbild (Wer bin ich?) - aus "Mulan" (Feat. Guo Gan)
Kommt erst mein Prinz zu mir - aus "Schneewittchen und die sieben Zwerge"
It's All Right - aus "Soul" (Feat. Jon Batiste)
Nur kein Wort über Bruno - aus "Encanto"
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Denk stets an mich - aus "Coco – Lebendiger als das Leben!" (Feat. Miloš Karadaglić)
Wenn ein Stern in finst'rer Nacht - aus "Pinocchio" / Englische Version (Feat. Gina Alice)
Dir gehört mein Herz - aus "Tarzan" / Italienische Version (Feat. Andrea Bocelli)
Beethoven: Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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Rachmaninov: Piano Concerto No.2; Rhapsody on a Theme of Paganini; Prelude op.23
Rhapsody on a Theme of Paganini, Op. 43: Variation No. 18 - Live
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