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 0xe0f051c27902a2f4bb51acebff45b548fa838d912f6ee26087808fe6750f25e0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fe25699-9a27-45c9-9f2f-a7992c311490.json and https://artists.proofprofile.net/proofs/artist/1fe25699-9a27-45c9-9f2f-a7992c311490.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
101 Classics - The Best Loved Classical Melodies
An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
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 0x99f9192770574915c7491472dc2c7fd5524f6dafed5677d6c674d89993509b4a. 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/HKI199245311.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso (Opening)
Polish National Radio Symphony Orchestra
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Emperor Waltz, Op. 437: Kaiser Walzer (Emperor Waltz), Op. 437
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The Danube Waves: Valurile Dunarii (The Danube Waves)
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Serenade for Strings in C Major, Op. 48: II. Walzer
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Les Patineurs, Op. 183, "The Skater's Waltz"
Slovak State Philharmonic Orchestra, Kosice
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The Nutcracker Suite, Op. 71a: VIII. Waltz of the Flowers
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto
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Konzert für Oboe d-Moll: Oboe Concerto in D Minor: II. Adagio
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Suite für Orchester Nr. 3 D-Dur, BWV 1068: Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
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Music for the Royal Fireworks, HWV 351: III. La paix
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Keyboard Suite No. 7 (Set I) in G Minor, HWV 432: IV. Sarabande
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Trio Sonata in B-Flat Major, Op. 5, No. 17, RV 76: II. Allemanda: Allegro
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Trio Sonata in B-Flat Major, Op. 5, No. 17, RV 76: III. Corrente: Allegro
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Water Piece in D Major, HWV 341 (arr. for trumpet and orchestra): II. Allegro (Gigue)
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Trumpet Sonata in D Major, Z. 850: I. Allegro
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Trumpet Sonata in D Major, Z. 850: III. Allegro
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Sonata a 5 in G Minor, Op. 2, No. 6: I. Adagio
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Sonata a 5 in G Minor, Op. 2, No. 6: III. Grave
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Sonata a 5 in G Minor, Op. 2, No. 6: IV. Allegro
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Suite für Orchester Nr. 2 h-Moll, BWV 1067: Overture (Suite) No. 2 in B Minor, BWV 1067: VII. Badinerie
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Serses, HWV 40: Serse (Xerxes), HWV 40, Act I: Ombra mai fu, "Largo" (arr. for oboe and orchestra)
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Konzert für Oboe Nr. 3 g-Moll, HWV 287: Oboe Concerto No. 3 in G Minor, HWV 287: III. Sarabande
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Solomon, HWV 67, Act III: Sinfonia, "Arrival of the Queen of Sheba"
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Herz und Mund und Tat und Leben, BWV 147: Chorale: Jesus bleibt meine Freude (arr. for organ)
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Flute Concerto in D Major, Op. 10, No. 3, RV 428, "Il gardellino": II. Cantabile
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Concerto for Lute and 2 Violins in D Major, RV 93 (arr. for lute and strings): I. Allegro giusto
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Der Messias, HWV 56: Messiah, HWV 56, Part II: Hallelujah! (Chorus)
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Keyboard Concerto in F Minor, BWV 1056: Piano Concerto in F Minor, BWV 1056: Largo
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Concerto Grosso in A Minor, Op. 6, No. 4: Largo, e piano
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Concerto for 2 Violins in D Minor, BWV 1043: Double Concerto in D Minor, BWV 1043: Largo ma non tanto
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Violin Concerto in C Major, Op. 8, No. 6: Largo (e cantabile)
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Concerto Grosso in D Major, Op. 6, No. 5: Largo
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Musique de table, Part II: Concerto for 3 Violins in F Major, TWV 53:F1: Concerto for 3 Violins in F Major: Largo
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Concerto Grosso in F Major, Op. 6, No. 6: Largo
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Chamber Concerto in D Major, RV 93 (arr. for guitar and orchestra): Guitar Concerto in D Major, RV 93: Largo
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Oboe Concerto No. 3 in G Minor, HWV 287: Sarabande (Largo)
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Violin Concerto in A Minor, Op. 3, No. 6: Largo
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Concerto Grosso in C Major, HWV 318, "Alexander's Feast": Alexander's Feast: Largo
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Concerto for Oboe and Violin in B-Flat Major, RV 548: Largo
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A Guided Tour of the Classical Era, Vol. 1
Keyboard Sonata in D Major, K.96/L.465/P.210: Allegrissimo
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Art & Music: Canaletto - Music of His Time
A Guided Tour of the Classical Era, Vol. 2
Brahms / Duvernoy / Herzogenberg: Horn Trios
Mozart: Oboe Quartet, K. 370 / Horn Quintet, K. 407 / A Musical Joke, K. 522
Horn Quintet in E-Flat Major, K. 407: III. Rondeau: Allegro
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Bagatelle in A Minor, WoO 59, "Fur Elise"
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Septet in E-Flat Major, Op. 20: II. Adagio cantabile
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Concerto for Violin, Cello & Piano in C Major, Op. 56 "Triple Concerto": II. Largo
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Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Violin Concerto in D Major, Op. 61: II. Larghetto
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Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile
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Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
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Quintet in E-Flat Major, Op. 16: II. Andante cantabile
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Serenade - Classical Favourites for Relaxing and Dreaming
Serenade für Streicher, Op. 22, B. 52: Larghetto
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Carmen (arr. for flute and harp): Intermezzo from "Carmen"
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Piano Quintet in E-Flat Major, Op. 16: Piano and Wnd Quintet in E-Flat Major, Op. 16: Andante cantabile
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Meditation - Classical Favourites for Relaxing and Dreaming
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Oboe Concerto in D Minor, Op. 9, No. 2: II. Adagio
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Mozart: Piano Quintet in E-Flat Major / Beethoven: Piano Quintet in E-Flat Major
Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romanze: Andante
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Kinderszenen (Scenes of childhood), Op. 15: VII. Träumerei (Dreaming) (arr. for orchestra)
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Frösöblomster, Book 1, Op. 16: Frosoblomster (Froso-Flowers), Book 1, Op. 16: No. 6. Vid Froso kyrka (At Froso Church)
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Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano (arr. D. Sosin for flute and harp)
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Fredmans epistlar (arr. J. Eriksson): Fredmans epistlar: No. 82. Vila vid denna kalla (arr. for orchestra)
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Consort Music: Consort Music: III. Ballad
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Pavane pour une infante defunte (version for piano)
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Clarinet Concerto in A Major, K. 622: II. Adagio
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Nocturnes, Op. 9: Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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Suite del recuerdo: Suite del recuerdo: I. Evocacion
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Cello Concerto No. 1 in G Major: II. Romance: Andantino
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En vintersaga, Op. 18: En vintersaga (The Winter's Tale), Op. 18: IV. Epilogue
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Beatles Concerto Grosso No. 3: II. Eight Days a Week: Rondeau (in the style of J.S. Bach)
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Clarinet Quintet in A Major, K. 581: II. Larghetto
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Beatles Concerto Grosso No. 4: III. Goodnight
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Gustav Adolf II, Op. 49: Gustav II Adolf, Op. 49: VII. Elegy
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Gammal fabodpsalm fran Dalarna (Old Pastoral Hymn from Dalecarlia) (arr. J. Johansson for orchestra): 2 Sentimental Romances, Op. 28: No. 1. Gammal fabodpsalm fran Dalarna (Old Pastoral Hymn
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Saeterjentens Sondag, "The Herd-girls' Sunday"
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3 Gymnopédies (arr. for flute and harp): Gymnopedie No. 3 (arr. for flute and harp)
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Stardust (arr. L. Kallin): Stardust (trans. L. Kallin)
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Sången, Op. 44: Sangen, Op. 44: Interlude
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Donizetti: Double Concerto / Flute Concertino / Clarinet Concertino
Flute Sonata (Concertino) in C Minor: Largo - Allegro (orch. W. Hoffmann)
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Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): I. Allegro ma non troppo
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Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): II. Andante
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Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): III. Rondo (Allegro moderato)
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Cor Anglais Concertino in G Major: Andante con variazioni
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Clarinet Concerto in B-Flat Major (reconstructed R. Meylan): I. Andante sostenuto
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Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": I. Poco allegro
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Keyboard Sonata in F Major, Wq. 48 No. 1 "Prussian Sonata No. 1": III. Vivace
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Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": II. Adagio
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Keyboard Sonata in B-Flat Major, Wq. 48 No. 2 "Prussian Sonata No. 2": III. Allegro
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": I. Poco allegro
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Keyboard Sonata in E Major, Wq. 48 No. 3 "Prussian Sonata No. 3": II. Adagio
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Keyboard Sonata in C Minor, Wq. 48 No. 4 "Prussian Sonata No. 4": II. Adagio
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Keyboard Sonata in A Major, Wq. 48 No. 6 "Prussian Sonata No. 6": II. Adagio
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Keyboard Sonata in A Major, Wq. 48 No. 6 "Prussian Sonata No. 6": III. Allegro
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Keyboard Concerto in C Major, Wq. 112 No. 1: I. Allegretto
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Purple Classics Presents: Quiet Time – The Music of Mozart
3 Gymnopedies: No. 1. Lent et douloureux (arr. for orchestra)
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Lugna blå timmar – Harmonisk klassisk musik
Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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Dvorak: String Quintet - Serenade in D Minor
Bach, C.P.E. / Marcello, A.: Oboe Concertos
Oboe Concerto in B-Flat Major, Wq. 164, H. 466: I. Allegretto
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Oboe Concerto in B-Flat Major, Wq. 164, H. 466: II. Largo e mesto
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Oboe Concerto in B-Flat Major, Wq. 164, H. 466: III. Allegro moderato
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Oboe Concerto in E-Flat Major, Wq. 165, H. 468: I. Allegro
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Oboe Concerto in E-Flat Major, Wq. 165, H. 468: II. Adagio ma non troppo
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Oboe Concerto in E-Flat Major, Wq. 165, H. 468: III. Allegro ma non troppo
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Flute Sonata in A Minor, Wq. 132, H. 562 (arr. for oboe): I. Poco adagio
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Flute Sonata in A Minor, Wq. 132, H. 562 (arr. for oboe): III. Allegro
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Oboe Concerto in D Minor: I. Andante e spiccato
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Oboe Concerto in D Minor: Adagio (Anonimo Veneziano)
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": V. Allegro
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