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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f3d4d0935b16000317b4c93c100ce5d89994f3e5faac570d807473a407e4b1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40941318-5837-4e4c-b3e7-00096ebea112.json and https://artists.proofprofile.net/proofs/artist/40941318-5837-4e4c-b3e7-00096ebea112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26d9e3400fc53ac94c18dc4416712b3dd49c07bde237974a728b723bfc553af. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEE861900940.
Introduction et valse mélancolique, Op. 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a4ddc7a1b76dda4de675b2e20654ed64124522925079cff6377860883aa95c. 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/DEE861900943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce2a3d292fa9a30df310a4a308f23d6a49016ffa056ca07d3b6589c9acd9283. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE861900944.
Duo for two Cellos in E Major, Op. 54, No. 3: I. Adagio - Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6db6650be4db891d8af5c58644e498ab6a4684106d8820ced236f85bfb9958. 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/DEE861900947.
Les contes d'Hoffmann: Barcarolle (Arr. for 2 Cellos and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491c442c6d6799bf08594296f65fbe5fb0664423fa8ff0a01e70cb92301e2907. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEE861900941.
O virtus sapientiae (Arr. for Cello & Orchestra by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b21ef78d52652ad76a7971b7f8ac8321a1bf52b08e9fc2c591b552b1231bca8. 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/DEE862201839.
Dido and Aeneas, Z. 626: When I am Laid in Earth (Dido's Lament, Arr. for Cello & Orchestra by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a953aefc228e2f16f4ec1ac066f9f2bfd20299a6144d0765b841afbb03015a4. 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/DEE862201841.
Deux Morceaux: I. Nocturne (Arr. for Cello & Piano by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ace946093200d2385031b38be1dca29881f6bc99c1c7d1f494a1b239b15990. 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/DEE862201858.
Nuit étoilée (Arr. for Cello & Piano by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6274ee4775e5a42bdd39870e564335b9f3b11a71feeaf8e2d8818d15315d56. 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/DEE862201859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97d04ca4deee09eb430df0f78a26da3f309b1873ea283551807ae9ca35593ef. 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/DEE862201860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778d31983f2cc2300982740a2c692ff52fa2f4e89b14863861f25f4bffd0152d. 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/DEE862201863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dea88292c05d350da6102f6f2f5e57ccf7a277787311bd683e685fed792aab7. 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/DEE862201864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef42fdc3e0c165ab5124c680fb486ecdc16493c24f4dff8de8dc6678e0ab941. 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/DEE862201862.
Tre Momenti for Cello and String Orchestra: III. Allegrezze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a17160a425b420507800efa34454014e40274bbdf27b6c9f2f0dc2609ec6fb2. 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/DEE862201850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccabb6bdfa33f8b7fb0ce07de8874a4dd976e8f4221c735b00427b0daef14ee. 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/DEE862201865.
Suite for Cello and String Orchestra. II. Aria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c525718e26b6e81079c59f9ed810ab88cf65b4f512fbe8cd050ffecf66c608. 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/DEE862201851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98964c2236703a3e84009e82ab55f9784360d53cf84bdd179f4ca72cd2a47663. 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/DEE862201866.
Carmen Fantasie (After Georges Bizet: Carmen, GB 9/WD 31)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4a399a6b465b4bff7e311eeae0ebbb43f2be13b86905e180dff9dc6a1c890a. 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/DEE862201852.
Adoration (Arr. for Cello & Orchestra by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0172c38d8398b7c42e33ff607b50e5b9897a455303802cb149153d5b92576340. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEE862201853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cc4a1afe34429492cdba658bbd355811850d870443d2be030751c4c5867e70. 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/DEE862201867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82602138643d485aca18736bf94f186c65cdc94484ffa254953056780ba5ab6. 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/DEE862201870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f0c3cd836150633182215d21dcc50cb22ef5ce80a92e2e6f7bddd6d66f1307. 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/DEE862201871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d8193c26ce32de2445f4546895fca7fe1372305a971d863882186620e5825e. 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/DEE862201872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984686d9141792ea66355c75363c1f3f5b761d269af5794049e68ff033f7e8f6. 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/DEE862201873.
II. Petit Poucet (Arr. for Piano Trio by Julian Riem)
Ma Mère l'Oye, M. 60: II. Petit Poucet (Arr. for Piano Trio by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4183c089712f94a3bb7890c62714e60220268ffff16aa595dd903c9ec6a03b. 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/DEE862300925.
I. Pavane de la Belle au bois dormant (Arr. for Piano Trio by Julian Riem)
Vocalise, Op. 34, No. 14 (Arr. for Piano Trio by Julian Riem)
The Sleeping Beauty, Op. 66, Act 1, No. 6: Waltz (Arr. for Piano Trio by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ace946093200d2385031b38be1dca29881f6bc99c1c7d1f494a1b239b15990. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862201858.
Mozart: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme"
My Own Home (from "The Jungle Book") - Cello-Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2ce50551ba1d973de81f9a99946569aea00c1355e19e20d63d5ad2c13fc0b8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEE862301563.
Someday My Prince Will Come - Cello-Piano Version
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When You Wish Upon a Star - Cello-Piano Version
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A Whole New World (from "Aladdin") - Cello-Piano Version
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Let It Go (from "Frozen") - Cello-Piano Version
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Lift Me Up (from "Black Panther: Wakanda Forever") - Cello-Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc759c6f3495f3d4941236096df631d83fc0c4984bfa848efa5283b5404576f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEE862301567.
Under the Sea (from "The Little Mermaid") - Cello-Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8247fefc3c7f63d877760cd4340b784d01dbf3e359b282a6a9eee6cf331094b0. 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/DEE862301560.
Hänsel und Gretel, Act 2: Abendsegen (Arr. for Saxophone Quartet and 2 Cellos by Julian Riem)
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The Shire (from "Lord of the Rings", Arr. for Cello, Piano & Harp by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62804c685b8c1ae58357bf888fc1b367c615f977e11ec9096d0538627dbfe35. 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/DEE862101081.
Princess Leia's Theme (from "Star Wars IV", Arr. for Cello & Piano by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e36b4a528be94a53894bb646de70abc290f6d9d44ac9f271223d9f11bb4b7f3. 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/DEE862101082.
Cello Sonata in F Major, [Op. 6, TrV 115], 1st Version: II. Larghetto
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Schlichte Weisen, Op. 21, TrV 160: II. Du meines Herzens Krönelein (Arr. for Cello and Piano by Julian Riem)
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4 Lieder, Op. 27, TrV 170: IV. Morgen! (Arr. for Cello and Piano by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd42aa6742aeceeff1d465dfd2673fb8c75f130f95d59d98386a6b9a6d91d4c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEE861904316.
Cello Sonata in F Major, Op. 6, TrV 115, 2nd Version: I. Allegro con brio
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Cello Sonata in F Major, Op. 6, TrV 115, 2nd Version: II. Andante ma non troppo
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Cello Sonata in F Major, Op. 6, TrV 115, 2nd Version: III. Finale. Allegro vivo
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Der Rosenkavalier, Op. 59, TrV 227: Walzerfolge (Arr. for Cello and Piano by Julian Riem)
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Hommage à Rossini, Fantaisie pour violoncelle et orchestra
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Cello Sonata in F-Sharp Minor, Op. 52: III. Intermezzo. Andantino
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2 Stücke, Op. 16: I. Romanze (Quasi adagio)
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2 Stücke, Op. 16: II. Humoreske (Allegro con brio)
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Violinsonaten: Franck, Grieg, Brahms - Markus Wolf, Julian, Riem
Raphaela Gromes - Juliam Riem: Violoncellosonaten - Strauss & Mendelssohn
Claude Debussy: Prélude Book I No. 7 'Ce Qu'a Vu Le Vent D'ouest' L117
Claude Debussy: Prélude Book II No. 4 'Les fées sont d'exquises danseuses' L 123
When You Wish Upon a Star (Cello-Piano Version)
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A Whole New World (from "Aladdin") [Cello-Piano Version]
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Beauty and the Beast (Cello-Piano Version)
Someday My Prince Will Come (Cello-Piano Version)
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12 Romances, Op. 21, No. 7: Zdes' khorosho (Arr. for Cello & Piano by Julian Riem)
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10 Preludes, Op. 23, No. 10: Largo in G-Flat Major (Arr. for Cello & Piano by Julian Riem)
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The Fairy Queen, Z 629: Sing While We Trip Upon the Green (Arr. for Cello & Harpsichord by Julian Riem)
Alcina, HWV 34: Verdi prati (Arr. for Cello & Harpsichord by Julian Riem)
Salut d'amour, Op. 12 (Arr. for Cello and Piano by Julian Riem)
Joy (After Bach's Jesu, Joy of Man's Desiring, BWV 147, No. 10 and Beethoven's Symphony No. 9, Op.125: IV. "Ode to Joy")
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Merry Go Round of Life (from "Howl's Moving Castle", Arr. for Cello & Piano by Julian Riem)
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Reflections (Arr. for Cello & Piano by Julian Riem)
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Gymnopédie No. 3 (Arr. for Cello and Piano)
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Classical Music Essentials - Best of Orchestral and Piano Classics
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