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 0x3b2e1d06d04ddb74bb9bdd9a283a602a6f85d51bb8f708be158a3670d0bbb917. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ff96d68-b74a-4d44-802e-8435945d696c.json and https://artists.proofprofile.net/proofs/artist/5ff96d68-b74a-4d44-802e-8435945d696c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Angela Brownridge plays Tchaikovsky & Schumann
Beethoven: Piano Sonatas No. 3, No. 23 & No. 30
Kenneth Leighton: Complete Solo Piano Works
Gershwin: Fascinating Rhythm – The Complete Music for Solo Piano
Tchaikovsky: The Seasons and Piano Sonata in G
Satie: Jack-in-the-Box & Other Piano Favourites
Satie: 3 Gymnopédies: No. 1, Lent et douloureux
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 0x224c21e1eb1b2dd5f0163cd9110ed4bdcb7afc3e34d6a54599df78da7220fb3a. 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/GBAYD8500194.
Satie: 3 Gymnopédies: No. 2, Lent et triste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c741ac5fbc5b78a5f3df08558a73b1d980acd6052ee2ca976b8cb9d124a2aa. 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/GBAYD8500195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9a3f51fad584a3d29519db7c78233026a2b3e32e858a8fec14f1e54e15433a. 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/GBAYD8500347.
Six German Dances, K.600: No. 5 in G (trio: Der Kanarienvogel)
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6 Minuets K. 105 (attribution doubtful): No. 1 in D Major
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Cotillon. Allegro] in B-Flat Major, K. 15gg
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Mozart a 9 anni - Elaborazioni per orchestra d'epoca: 5. Allegro in D Minor (Londoner Skizzenbuch n.20, K.15u)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e1a4609f3b6f927ca2c58743e824e206bf9db14f26b82533549e0764151b52. 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/ITUM71701351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c89c24c401032a27eabda2c0ccdab0c7178d12f2bfb54af8027f28f7024cc54. 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/GBAYC1800563.
Fauré: Requiem, Op. 48: VII. In Paradisum
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcffca545c863fcbae07522d5e18334c9233442e841cbd30c04c46361a9f77f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC9000915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ddd0f2243ea0f57c853cdb389afd566b2708a2f76b8ea47ec78d19a84a709c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC1900250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895bf25acc902ab813a0cc729c8346d7186b4459903e3b9ecf2765eb9072108e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYD9300446.
Debussy: Suite bergamasque, CD 82, L. 75: III. Clair de lune
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Saint-Saëns / Transcr. Vidal: Le carnaval des animaux: XIII. Le cygne
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Vaughan Williams: The Lark Ascending (Excerpt)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7433350c3dc53238098680900208c35d52b9dc2d15ddaa4cb206605566b1472. 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/GBAYC1801066.
Puccini: Gianni Schicchi: "O mio babbino caro" (Lauretta)
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Williams: Main Theme (From "Schindler's List")
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Myers: Cavatina (From "The Deer Hunter")
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69630f5e76fe3701256d9a001b9f5a2d8de2302aecf582ac1b93e9dd260665e. 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/GBAYC1900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c312a3e1cccd4117c67ae36488062e4be9a37be83da1204470c0ed250b09be. 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/GBAYC8800397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b8500e1b7f39e2bda1e5e59ab84a0ce7c1eaf58d2aa5196e3bd0b6e02cf1a3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC1900068.
Górecki: Symphony No. 3, Op. 36 "Symphony of Sorrowful Songs": II. Lento e largo (Excerpt)
Symphonieorchester des Südwestfunks-Baden-Baden
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0759edd50b193cbba77f06bcfc8a78601557e8fdd2d92b13445d5d8fc991b408. 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/GBAHT9903305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bf87eb960de890978e30e6f9aef6840cfac960c358397b1eddadf55e745e85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBELP0790006.
Delibes: Lakmé, Act 1: "Dôme épais, le jasmin" (Lakmé, Mallika)
Orchestre du Theatre National de IOpera-Comique
Orchestre Du Theatre National De L'Opera Comique
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Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto (Excerpt)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947d405c5fdf5734d6ac87650898c7d1fed05fdeb5bb19d0b29ce0ecdc1d583c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYC9703856.
Bach, JS: Goldberg Variations, BWV 988: I. Aria
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445da729bb984e954620d7ee648440b05d0a51e309f7b58e6c3abe7d812b6de1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYC0702381.
Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation IX. Nimrod
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e649cda0c3dbf1907d5500f821ffe304cc36cca64c2f287e76f869abf49d6d9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBHKE0600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324749905ad762ac87259869a7f6fe02aab2784261aad8ffb94fc32561423cf0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC1700606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8b45109a84d75979f8fdff40a492c235d8a2db7ba46a3faee4aaec0be30553. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYD9700078.
Bellini: Norma, Act 1: "Casta diva" (Norma, Coro)
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Bach, JS: Piano Concerto No. 5 in F Minor, BWV 1056: II. Largo
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5a180bdc22be59b8bfb057eb169a6a88f1c13da17b1eb6d36363aad42c8830. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC8601138.
Bruch: Violin Concerto No. 1, Op. 26: II. Adagio (Opening)
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Handel / Orch. Hale: Keyboard Suite No. 4 in D Minor, HWV 437: III. Sarabande
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Horner: My Heart Will Go On (Love Theme from "Titanic")
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Rachmaninov: Rhapsody on a Theme of Paganini, Op. 43: Variation XVIII. Andante cantabile
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Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
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Saint-Saëns: Le carnaval des animaux, R 125: VII. Aquarium
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Vaughan Williams: Fantasia on a Theme by Thomas Tallis (Opening)
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Bach: Herz und Mund und Tat und Leben, BWV 147, Pt. II: No. 10 "Jesus bleibet meine Freude"
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Catalani: La Wally, Act 1: "Ebben? Ne andrò lontana" (Wally)
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Newman: Any Other Name (From "American Beauty")
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Beethoven: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco mosso (Excerpt)
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Flower duet from Lakme - Remasterisé en 1987
Orchestre Du Théatre National De L'Opéra Comique - Alain Lombard - Mady Mesple - Danielle Millet
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Elgar: Cello Concerto in E Minor, Op. 85: III. Adagio
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Beethoven: Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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Orfeo ed Euridice (1992 Digital Remaster): Ballet in D minor (Dance of the Blessed Spirits): (flute solo)
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Rodrigo: Concierto de Aranjuez: II. Adagio (Excerpt)
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Borodin: String Quartet No. 2 in D Major: III. Notturno (Excerpt)
Academy of St Martin-in-the-Fields/Kenneth Sillito/Denis Vigay/Sir Neville Marriner
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Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon (Orchestral Version)
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Brahms: Violin Concerto in D Major, Op. 77: II. Adagio
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Berlioz: La damnation de Faust, Op. 24, H 111: Danse des sylphes
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Dvořák: Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": II. Largo (Opening)
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Shostakovich / Arr. Atovmian: The Gadfly, Suite Op. 97a: No. 8 Romance
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Vaughan Williams: The Lark Ascending: Opening (Excerpt)
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Soft Classical Music for Studying and Reading
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Cantata, BMV 208: IX. Aria. Schafe können sicher weiden (Arr. for Cello & Piano)
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24 Preludes, Op. 11: No. 21 in B-Flat Major. Andante
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Nocturnes, Op. 15: No. 2 in F-Sharp Major. Larghetto
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Prelude and Fugue in F Minor, BWV 881: I. Prelude
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Nocturnes, Op. 9: No. 2 in E-Flat Major. Andante
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Goldberg Variations, BWV 988: No. 29, Variatio 28. a 1 clav.
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Cello Sonata in A Minor, D. 821 "Arpeggione": II. Adagio (Arr. Lenaerts & Grammenos)
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Theme and Variations in E-Flat Major, WoO 24 "Geistervariationen": I. Thema - Leise, innig
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Suite bergamasque, L. 75: III. Clair de lune
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6 Consolations, S. 172: No. 3 in D-Flat Major. Lento placido
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Ce Matin-là (Arr. Tharaud for Clarinet, String Quartet & Piano)
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Myrthen, Op. 25: No. 1, Widmung (Arr. Franz Liszt)
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Fantasia on a Theme by Thomas Tallis (Excerpt: Opening)
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Six Bagatelles, Op. 126: V. Quasi allegretto
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Harpsichord Suite No. 4 in D Minor, HWV 437: III. Sarabande
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Hunt Cantata, BWV 208: No. 9, Sheep May Safely Graze (Arr. Marriner)
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Rhapsody on a Theme of Paganini, Op. 43: Var. XVIII. Andante cantabile
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Impromptus, D. 899: No. 3, Andante in G-Flat Major
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Three Songs, Op. 3: 2. Now sleeps the crimson petal (arr. Hough)
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Suite from Les enfants terribles: II. The Somnambulist
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Symphony No. 5 in C-Sharp Minor: IV. Adagietto
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The Carnival of the Animals, R. 125: VII. Aquarium
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Variations on an Original Theme, Op. 36 "Enigma": Var. IX. Nimrod
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Violin Sonata No. 1 in D Minor, Op. 75: II. Allegro molto
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Three Nocturnes, Op. 33: No. 1 in E-Flat Minor
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The History of Classical Music: The Best of the 20th century
Guten Morgen - ganz klassisch - classical crossover
Klassische Musik zum Studieren und Lesen
Nocturne No. 20 in C-Sharp Minor, Op. Posth
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The Young Weaver (Renaissance Piano Version)
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Miocheries, Op. 126: No. 13, La toute petite s'endort
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Pictures at an Exhibition: II. The Old Castle
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The Place Where They Go (Munich Session)
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The Shape of Water: I. The Shape of Water
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Prelude and Fugue in F Major, BWV 880: I. Prelude
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Wachet auf, ruft uns die Stimme, BWV 140: I. Chorale, Wachet auf, ruft uns die Stimme (Arr. for Guitar)
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Premier livre de pièces de clavecin: VI. L'Aimable
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Violin Concerto in A Minor, BWV 1041: I. Allegro
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Oblivion (Arr. Zimmerman for Trumpet and Orchestra)
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Il trionfo del Tempo e del Disinganno, HWV 46a: No. 45, Lascia la spina, cogli la rosa (Piacere)
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Beethoven & Friends: Classics by the Great Composers
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Theme
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 1
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 2
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 3
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 4
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 5
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6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 6
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11 Bagatelles, Op. 119: No. 5 in C Minor. Risoluto
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48 Esquisses, Op. 63, Book 3: No. 26, Petit air
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The Tale of Tsar Saltan: The Flight of the Bumblebee (Transcr. Rachmaninoff for Piano)
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo. Allegretto
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Responsorien und Antiphonen, S. 30: V. In Officio defunctorum: z. Responsorium 9a Reprise. Libera me, Domine, de morte
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Prole do bebê 1, W140: VII. O Polichinelo
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12 Monferrinas, Op. 49: VIII. Vivace assai
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24 Preludes in All Major and Minor Keys, Op. 102: No. 20 in A Minor
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2 Poèmes, Op. 63: No. 1, Masque. Allegretto
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3 Morceaux, Op. 49: No. 3, Rêverie. Con finezza
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12 Variations for Violin and Piano on "La bergère Célimène", K. 359: Var. 3
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12 Variations for Violin and Piano on "La bergère Célimène", K. 359: Var. 4
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12 Variations for Violin and Piano on "La bergère Célimène", K. 359: Var. 7
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7 Bagatelles, Op. 33: No. 3 in F Major. Allegretto
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24 Preludes, Op. 28: No. 3 in G Major. Vivace
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16 German Dances, D. 783: No. 3 in B-Flat Major
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Papillons, Op. 2: No. 9 in B-Flat Minor. Prestissimo
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Saint-Saëns: The Complete Music for Piano & Orchestra
Pas de quatre. Dance of the 4 Swans (Arr. Wild)
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Piano Version of Ballet Music from Ascanio in Alba, K.Anh207: No. 8
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3 Romances sans paroles, Op. 17: III. Andante moderato
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Waltz in A Minor “Found in New York” - 2024 World Premiere Recording
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Etudes in Variation Form on a Theme by Beethoven, WoO 31: I. Molto moderato
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Etudes in Variation Form on a Theme by Beethoven, WoO 31: III.
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19th Century Composers - Pyotr Ilyich Tchaikovsky
Children's Album, Op. 39, TH 141: 23. Organ-Grinder's Song
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