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 0x3f22a2f0f821829b13db5c0bcea284ff5aaa2ab2836a2e15d513cbeb7508f595. 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/6bc0ce61-6141-4c21-93fa-c7f7c2942b3f.json and https://artists.proofprofile.net/proofs/artist/6bc0ce61-6141-4c21-93fa-c7f7c2942b3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saint-Georges: Violin Concertos, Opp. 2 & 7
Violin Concerto in G Major, Op. 2 No. 1: II. Largo
Joseph Boulogne Chevalier de Saint-Georges
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 0x9e031fe6f48b4053e8b97bb0b8fc45f79d505488796d93a6667e693ee1a3e906. 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/HKI192240702.
Violin Concerto in G Major, Op. 2 No. 1: III. Rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb2c310b28c3c657f7248459d3b1c307b698e82b201fe8fa690f368cbb73b82. 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/HKI192240703.
Violin Concerto in D Major, Op. 2 No. 2: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49889436de22038a634e477a8b105d1fb9864922a2d946ffa0e18bb650e54eb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI192240704.
Violin Concerto in D Major, Op. 2 No. 2: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564ab6e966c3b0646623a94f3aad365e6d643fab54cbbaf14dac9a69e0f2f521. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/HKI192240705.
Violin Concerto in D Major, Op. 2 No. 2: III. Rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0278d32118ae7ad2b00a537f438463be3e1a6ab6b219c2d24950ff773dba5d64. 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/HKI192240706.
Violin Concerto in A Major, Op. 7 No. 1: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a4a63bdb2a0639d9749aa430254a76756a85a7a2eeb60d48ec2ace7cab827b. 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/HKI192240707.
Violin Concerto in A Major, Op. 7 No. 1: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0450dd448842b6ab1cad059fd91b6a4511170676d695641730087681b43cc949. 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/HKI192240708.
Violin Concerto in B-Flat Major, Op. 7 No. 2: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184a27e49113a76942b2fde0ca7c1b5650275cd6af28b6ba958ac60d0da55e13. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKI192240710.
Violin Concerto in B-Flat Major, Op. 7 No. 2: II. Andante moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4189384cfd0f7e9ac90a3078ab5ce6e35678030bce08634085d92069429904. 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/HKI192240711.
Violin Concerto in B-Flat Major, Op. 7 No. 2: III. Rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cca68236bc8c9f346a96e70b698089dc7c99e223df7e353486562793527a83. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI192240712.
Symphony in F Minor, Bryan f1: I. Allegro moderato
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Symphony in F Minor, Bryan f1: II. Cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c315a839ab6a3f756f19da9a4a2497a668ac508483c501d65cd41efec836cb. 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/HKI192118302.
Symphony in F Minor, Bryan f1: III. Allegro molto
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Symphony in E-Flat Major, Bryan Eb4: II. Andante scherzando
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Symphony in E-Flat Major, Bryan Eb4: IV. Allegro molto
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Symphony in C Major, Op. 25, Bryan C7b: II. Andante molto
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Symphony in C Major, Op. 25, Bryan C7b: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910e2715f5e08af3da82d382f9f2cb1573941d9f3e98f288f122a3d46f84e0fa. 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/HKI192118311.
Oboe Concertino in G Major, Bryan G5: II. Minuetto. Moderato
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Oboe Concertino in G Major, Bryan G5: III. Adagio
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Wiegenlied, Op. 98, No. 2, D. 498 (arr. for orchestra)
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6 Moments Musicaux, Op. 94, D. 780: No. 2 in A-flat Major: Andantino
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Symphony No. 6 in C Major, D. 589: Ii. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90160de0c1af8c9598d4af6459910907115618eea0e3a207e79d0c5120452736. 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/HKI199302606.
Piano Quintet In A Major, Op. 114, D. 667, "die Forelle" (The Trout): Ii. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd50e854a062fac85baa06dbe468b8e868ad0b231539d9ae8f31dfed5c54038. 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/HKI199300302.
Adagio and Allegro, Op. 70 (version for cello and piano): Adagio
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Symphonie Concertante in C Major, Op. 9 No. 1: I. Allegro
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Symphonie Concertante in C Major, Op. 9 No. 1: II. Rondeau
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Symphonie Concertante in A Major, Op. 9 No. 2: II. Rondeau
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Symphony in G Major, Op. 11 No. 1: I. Allegro
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Flute Concerto in A Major, Badley A1: III. Allegro
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Variations on a Rococo Theme, Op. 33b, TH 57b: Var. 2, Tempo della thema
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Variations on a Rococo Theme, Op. 33b, TH 57 b: Var. 6, Adagio
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bd446631a6f82f11a04d8596acacacd2e7d92797dc2b1dbfd452ca39321b70. 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/HKI199316310.
Swan Lake, Op. 20, TH 219: Act II: Dances of the Swans: Allegro
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Mozart: The Magic Flute (Highlights) – Queen of the Night Arias
The Magic Flute, K. 620, Act II: Pa-Pa-Pa-Pa-Pa-Pa-Papagena!
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Joachim, J.: Violin Concerto, Op. 11, "In the Hungarian Style" / Violin Concerto in G Minor, Op. 3
Strauss, R.: 4 Last Songs / 6 Lieder / Ariadne Auf Naxos (Excerpts)
Mozart: Mass No. 18 in C Minor, K. 427, 'Great' / Kyrie in D Minor, K. 341
Ce qu'on entend sur la montagne (What Is Heard on the Mountain), S. 95/R. 412
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Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
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Le nozze di Figaro, K. 492: Act I No. 1: Duettino - Cinque...dieci...venti...trenta
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Le nozze di Figaro, K. 492: Act I No. 6: Aria - Non so piu cosa son faccio
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Le nozze di Figaro, K. 492: Act I No. 10: Aria - Non piu andrai, farfallone amoroso
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Le nozze di Figaro, K. 492: Act II No. 12: Arietta - Voi, che sapete
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Rubinstein: Violin Concerto - Cui: Suite Concertante
Lalo: Cello Concerto in D Minor / Cello Sonata
Bellini: Norma (1831 Edition for 2 Sopranos)
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Fidelio, Op. 72, Act II: Introduction and Aria. Gott! Welch' Dunkel hier! (Florestan)
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Fidelio, Op. 72, Act I: Duet. Jetzt, Schatzchen, jetzt sind wir allein (Jaquino, Marzelline)
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Fidelio, Op. 72, Act I: Aria. O war' ich schon mit dir vereint (Marzelline)
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Fidelio, Op. 72, Act II: Terzetto. Euch werde Lohn in bessern Welten (Florestan, Rocco, Leonore)
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Fidelio, Op. 72, Act I: Quartet: Mir ist so wunderbar (Marzelline, Leonore, Rocco, Jaquino)
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Fidelio, Op. 72, Act II: Quartet: Er sterbe! (Pizarro, Florestan, Leonore, Rocco)
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Fidelio, Op. 72, Act I: Aria. Hat man nicht auch Gold beineben (Rocco)
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Fidelio, Op. 72, Act II: Finale. Heil! Heil sei dem Tag! (People and Prisoners)
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Fidelio, Op. 72, Act I: Terzetto. Gut Sohnchen, gut (Rocco, Leonore, Marzelline)
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Fidelio, Op. 72, Act II: Wer ein holdes Weib errungen (People and Prisoners, Florestan, Leonore, Marzelline, Jaquino, Rocco, Don Fernando)
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Fidelio, Op. 72, Act I: Aria and Chorus. Ha! Welch ein Augenblick! (Pizarro, the Watch)
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Fidelio, Op. 72, Act I: Duet. Jetzt, Alter, jetzt hat es Eile! (Pizarro, Rocco)
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Fidelio, Op. 72, Act I: Dialogue: Marzelline! Marzelline!! (Jaquino, Marzelline, Rocco, Leonore)
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Fidelio, Op. 72, Act I: Finale. O welche Lust (Chorus of Prisoners)
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Fidelio, Op. 72: Abscheulicher! Wo eilst du hin?
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Dohnanyi: Konzertstuck for Cello / Cello Sonata / Ruralia Hungarica
Strauss, R.: Bourgeois Gentilhomme (Le) / Intermezzo, Op. 72
Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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FAURE: Requiem / PERGOLESI: Stabat Mater
Beethoven: Symphony No. 6 / Leonore Overture No. 2
101 Classics - The Best Loved Classical Melodies
An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
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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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Lakmé: Blumenduett (Lara Croft Tomb Raider): Lakme, Act I: Dome epais, "Flower Duet"
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Flowering of Love, (The) - Beautiful Arias and Sacred Songs of the Baroque
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Rinaldo, HWV 7, Act II: Lascia ch'io pianga
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6 Cantatas, "The Flowering and Fading of Love": No. 1. Da procella tempestosa, "La rosa": Largo
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Ode for St. Cecilia's Day, HWV 76: Air: What passion cannot Music raise
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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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Symphony No. 5 in C-Sharp Minor: IV. Adagietto: Sehr langsam
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Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache… (Queen of the Night)
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Peer Gynt Suite No. 1, Op. 46: IV. In the Hall of the Mountain King
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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The 4 Seasons: Violin Concerto in E Major, Op. 8, No. 1, RV 269, "La primavera" (Spring): The Four Seasons: Violin Concerto in E Major, Op. 8, No. 1, RV 269, "Spring": I. Allegro
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Swan Lake, Op. 20, Act II No. 10: Scene, "Swan Theme"
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Liebesträume, S. 541: 3 Liebestraume, S541/R211: No. 3: Nocturne in A-Flat Major
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Bagatelle in A Minor, WoO 59, "Fur Elise"
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Mandolin Concerto in C Major, RV 425: I. Allegro
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Die Walkure, Act III: Ride of the Valkyries
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Toccata and Fugue in D Minor, BWV 565: Toccata
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1812 Festival Overture, Op. 49: 1812 Overture, Op. 49
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Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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Music for the Royal Fireworks, HWV 351: IV. Le rejouissance
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3 Gymnopedies: No. 1. Lent et douloureux
Orchestre Symphonique et Lyrique de Nancy
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Piano Concerto in A Minor, Op. 16: I. Allegro moderato
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The Well-Tempered Clavier, Book I: Well-Tempered Clavier, Book I: Prelude and Fugue No. 1 in C Major, BWV 846
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The 4 Seasons: Violin Concerto in F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): II. Largo
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Rinaldo, HWV 7a: Lascia ch'io pianga (Let me lament)
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Suite bergamasque: III. Clair de lune (orch. A. Caplet)
Rheinland-Pfalz State Philharmonic Orchestra
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Gianni Schicchi: O mio babbino caro (Lauretta)
Belgian Radio and Television Philharmonic Orchestra
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Serse (Xerxes), HWV 40, Act I: Ombra mai fu: Largo (Serse)
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Nabucco, Act III: Va, pensiero, "Chorus of Hebrew Slaves"
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Prélude à l'après-midi d'un faune, L. 86: Prelude a l'apres-midi d'un faune
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Le nozze di Figaro, K. 492, Act I: Overture
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La crème de la crème: La musique classique
Martinia Franca Festival - 30th Anniversary
A Guided Tour of the Romantic Era, Vol. 3
Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Cello Concerto in B Minor, Op. 104, B. 191: II. Adagio ma non troppo
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Cello Sonata in G Minor, Op. 65: III. Largo
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A Guided Tour of Nationalism in the Romantic Era, Vol. 8
The Butterfly Lovers Violin Concerto (conclusion)
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The A to Z of Classical Music (3rd Expanded Edition, 2009)
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Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze: Andante
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Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto: Allegretto - Trio - Menuetto da capo
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Clarinet Concerto in A Major, K. 622: II. Adagio
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Die Zauberflöte, K. 620: Act II: Pa-Pa-Pa-Pa-Pa-Pa-Papagena! (Papageno, Papagena)
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Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): III. Rondeau: Allegro
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Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo
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A Guided Tour of the Classical Era, Vol. 2
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50 of the Best: Classical Music for Christmas
Festgesang, MWV D4, "Gutenberg-Kantate": No. 2. (adap. W.H. Cummings as Hark! The Herald Angels Sing)
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Classical Music for the Christmas Holiday, Vol. 1
A Guided Tour of Nationalism in the Romantic Era, Vol. 7
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Concerto for Flute & Harp in C Major, K. 299: II. Andantino
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Rejoice - A Vision of Christ Through Music
Die Zauberflöte, K. 620: Der Hölle Rache
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Peer Gynt, Op. 23: In the Hall of the Mountain King
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A Guided Tour of the Romantic Era, Vol. 8
Opera Without Words - The Most Famous Overtures, Preludes, and Interludes in Opera
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Orphee aux enfers (Orpheus in the Underworld): Can-Can
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Eugene Onegin, Op. 24: Act III Scene 1: Polonaise
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La gazza ladra (The Thieving Magpie): Overture
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Eugene Onegin, Op. 24: Act II Scene 1: Waltz
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La Gioconda, Act III: Dance of the Hours
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Le nozze di Figaro (The Marriage of Figaro), K. 492: Overture
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Il barbiere di Siviglia (The Barber of Seville): Il Barbiere di Siviglia (The Barber of Seville): Overture
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