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 0xe19c39107e617668d8f6f4cb8fb1b262a17cfefe0b20c48e3e1cceb95759a195. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dbb1346-d503-4874-9413-7eacf9a37065.json and https://artists.proofprofile.net/proofs/artist/5dbb1346-d503-4874-9413-7eacf9a37065.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nocturnes, Op. 27: No. 2 in D-Flat Major (Lento sostenuto)
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 0xe2bd377824c03ab69594242c1761666e7c1185c8ec5b30f0d678c687e75dd7bd. 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/GBAYC0100265.
Peer Gynt, Op. 23, Act IV: Prelude (Morning)
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Piano Concerto No. 2 in F Major, Op. 102: II. Andante
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Canon and Gigue in D Major, P. 37: I. Canon
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Piano Sonata No. 8 in C Minor, Op. 13 'Pathétique': II. Adagio cantabile
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Variations on a theme by Haydn, Op. 56b: Var. IV. Andante
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf359146a3677e5a630ff191b5b8cd7f8b79d066fee88cfe464f3db54663107ea. 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/GBAYC8801306.
L'Arlésienne Suite No. 1, GB. 121: III. Adagietto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad587f2e699b4f72428990e3ec7161675ad79b573e3f338bb4e64ddc0d1ed97. 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/GBAYD9100280.
The Carnival of the Animals, R. 125: XIII. The Swan
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The Carnival of the Animals, R. 125: VII. The Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b183788098e0ce6264633ce9a536f169f22e66a934ce1a2fcaba40df4fc30a. 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/GBAYC8800357.
Symphony No. 6 in F Major, Op. 68 'Pastoral': V. Allegretto
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Serse, HWV 40, Act I: Frondi tenere...Ombra mai fu
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Symphony No. 101 in D Major, Hob. I:101 'Clock': I. Adagio - Presto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4af2d39b4fb4b1c6caad9f8b1ecea46b2724f0e7dfe9326799858c29e51a030. 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/GBAYD8800169.
Peer Gynt Suite No.1, Op. 46: I. Prelude 'Morning'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6519245a32e06c53ffcf4e488fff2845904e4b2167ea375c18c9eddc227d09f. 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/GBAYC9000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb9a1e76d9889511a57b48d4b8f8dc6cf19344c36ddde72a4e2265b2b2e3130. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBAYC8300179.
Concerto for 2 Violins in A Minor, RV. 522: I. Allegro
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 'Moonlight': I. Adagio sostenuto (Excerpt)
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Waltzes, Op. 64: No. 1 in D-Flat Major 'Minute Waltz'
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Exsultate, Jubilate, K. 165/K. 158a: III. Alleluia (Allegro)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ed53f68177ce8f750cd4bd57b256009870e271d16d8d914ca3b5b086715d4. 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/GBAYC9602537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381f3d51f49336c921a70c736d2025101e8b1b85ee72db9c3647fb80adfd464d. 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/GBAYC9002473.
String Quintet in E Major, G. 275: III. Minuetto in A Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a7f28bf8f612963ce5f822319a3e19116edac334cb38c836ec29ff88e78328. 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/GBAYC9903580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980751d3f205c89964eb5df95933420c37d35562e101863e660f89643a41fdc6. 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/GBAYC8800957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443a3087b8a168236c347a3b00317a364be1b5e8e27cca40b40eafdb89fb5b54. 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/GBAYC1103044.
Piano Sonata No. 11 in A Major, K. 331: III. Rondo alla turca
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Requiem Mass in D Minor, K. 626: VIII. Sequentia, Lacrimosa dies illa
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Septet in E-Flat Major, Op. 20: I. Adagio - Allegro con brio
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Piano Concerto No. 5 in E-Flat Major, Op. 73 'Emperor': I. Allegro
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Concerto for 4 Harpsichords in A Minor, BWV. 1065: I. Allegro
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Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo
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String Quartet No. 14 in D Minor, D. 810 'La Jeune Fille et la mort': II. Andante con moto
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Solomon, HWV. 67, Act III: The Arrival of the Queen of Sheba
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (excerpt)
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Rhapsody on a Theme of Paganini, Op. 43: Var. XVIII. Andante cantabile, a tempo vivace
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Magnificat in D Major, BWV. 243: I. Magnificat anima mea
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Triple Concerto in C Major, Op. 56: II. Largo
Orchestre National de l'Opéra de Monte-Carlo
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Symphony No. 2 in E Minor, Op. 27: I. Allegro moderato
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Sonata for Cello and Piano, L. 135: I. Prologue (Lent)
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Orchestral Suite No. 4 in D Major, BWV. 1069: Menuets I & II
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7c8200732a425e63ff87e4e4cddc476f9bde141d1f138b4a59ccb9fb8aad44. 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/GBAYD9600278.
Violin Concerto No. 3 in F Major, RV. 293, Op. 8 No. 3 'L'autunno': I. Allegro
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Concerto Grosso in B-Flat Major, HWV. 312, Op. 3 No. 1: I. Allegro
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Brandenburg Concerto No. 2 in F Major, BWV. 1047: III. Allegro assai
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Wachet auf, ruft uns die Stimme Kantate, BWV. 140: IV. Zion hört die Wächter singen
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Three Gymnopédies: I. Lent et douloureux
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The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 'La primavera/Spring': I. 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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String Quintet in E Major, Op. 13: V. Minuet
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Vienna Strauss Orchestra and Willy Boskovsky
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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Les Contes d'Hoffmann, Act III: Barcarolle
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Peer Gynt Suite No. 1, Op. 46: I. Prelude (Morning)
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L'Arlésienne Suite No. 1, GB. 121: I. Prélude
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Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Peer Gynt Suite No.1, Op. 46: IV. In the Hall of the Mountain King
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Suite Bergamasque, L. 75: III. Clair de lune
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Symphony No. 9 in E Minor, Op. 95 'From the New World': II. Largo
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Pomp and Circumstance, Op. 39: No. 1 in D Major
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Romeo and Juliet, Op. 64: Dance of the Knights
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Piano Sonata No. 11 in A Major, K. 331/K. 300i: III. Rondo alla turca
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Nabucco, Act III: Va pensiero, sull'ali dorata
Chorus of the Royal Opera House, Covent Garden
Orchestra of the Royal Opera House, Covent Garden
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Mass No. 19 in D Minor, K. 626, Part III: VI. Lacrimosa
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Swan Lake, Op. 20, Act I: I. Scene (Allegro giusto)
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Paisiello: Il re Teodoro in Venezia (Recorded 1962)
The Best of Arcangelo Corelli: Concerto Grosso, Op. 6
Vivaldi: The Four Seasons "Le quattro stagioni" (Stereo Remaster)
Antonio Vivaldi: Il cimento dell'armonia e dell'inventione, Op. 8 (Stereo Version)
Vivaldi: Violin Concerto in C Major "For the Feast of the Assumption" & Oboe Concerto in F Major (Remastered)
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Scheherazade, Op. 35: II. The Story of the Kalender Prince
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Romeo and Juliet, Op. 64, Act I: Dance of the Knights
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Carmen, WD 31, Act I: L'amour est un oiseau rebelle (Habanera)
Choeurs et Orchestre de l'Opéra National de Paris
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Concerto for 4 Violins in E Minor, RV 550: III. Adagio
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2 Arabesques, L. 66: I. Andantino con moto
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Serenade in E Minor, Op. 20: II. Larghetto
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Pièces froides: I. Airs à faire fuir: No. 1, D'une manière très particulière
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4 Impromptus D. 899: No. 2 in E-Flat Major
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Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto
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The Seasons, Op. 37b: X. Octobre (Chant d'automne)
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Slavonic Dances, Op. 72: No. 2 in E Minor: Dumka (Allegretto grazioso)
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Romance for Violin and Orchestra in F Major, Op. 50
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Preludes, Op. 28: No. 15 in D-Flat Major "Raindrop" (Sostenuto)
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String Quartet No. 1, Op. 11: II. Andante cantabile
Orchestra dell' Accademia Nazionale di Santa Cecilia, Roma
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Waldszenen, Op. 82: VII. Vogel als Prophet
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Symphony No. 6 in B Minor, Op. 74 "Pathétique": II. Allegro con grazia
Orchestra dell'Accademia Nazionale di Santa Cecilia
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Concerto for Strings in A Major, RV. 158: I Allegro molto
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Concerto for Strings in A Major, RV. 158: III Allegro
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Violin Concerto in E-Flat Major, RV 253 "La tempesta di mare": I. Presto
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Violin Concerto in E-Flat Major, RV 253 "La tempesta di mare": II. Largo
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Violin Concerto in E-Flat Major, RV 253 "La tempesta di mare": III. Presto
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Violin Concerto No. 3 in F Major, RV 293 "Autumn": I. Allegro
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Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
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Violin Concerto No. 4 in F Minor, RV 297 "Winter": III. Allegro
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The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": III. Allegro
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Violin Concerto in A Major, RV 345: I. Allegro
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Concerto for 2 Violins in A Minor, RV 522: III. Allegro
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Concerto for 4 Violins in E Minor, RV 550: I. Andante
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Concerto for 3 Violins in F Major, RV 551: III. Allegro
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Harpsichord Concerto No. 5 in F Minor, BWV. 1056: II. Largo
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Cello Suite No. 1 in G Major, BWV. 1007: I. Prelude
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Piano Sonata No. 16 in C Major, K. 545 'Sonata facile': II. Andante
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Flute & Harp Concerto in C Major, K. 299: II. Andantino
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Violin Sonata No. 5 in F Major, Op. 24 'Spring': I. Allegro
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Concerto for Violin and Oboe in C Minor, BWV. 1060R: II. Adagio
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The Most Relaxing Vivaldi Album In The World... Ever!
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Serenade in C Major, Op. 48: II. Waltz (Moderato)
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Orchestral Suite No. 3 in D Major, BWV. 1068: II. Air
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Le Carnaval des Animaux, R. 125: XIII. The Swan (Le Cygne)
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The Four Seasons, Violin Concerto No. 2 in G Minor, RV. 315, Op. 8 No. 2 'L'estate/ Summer': III. Presto
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Violin Concerto in E-Flat Major, RV. 253, Op. 8 No. 5: I. Presto
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Violin Concerto in E-Flat Major, RV. 253 'La tempesta di mare': II. Largo
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Violin Concerto in E-Flat Major, RV. 253 'La tempesta di mare' Op. 8 No. 5: III. Presto
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Violin Concerto in B-Flat Major, RV. 362 'La caccia': I. Allegro
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The Four Seasons, Violin Concerto No. 1 in E Major, RV. 269 'La primavera': I. Allegro
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Violin Concerto in A Minor, RV 356: I. Allegro
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Mandolin Concerto in C Major, RV 425: I. Allegro
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Gloria, RV 589: I. Gloria in excelsis Deo
Academy of St Martin in the Fields Chorus
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The Four Seasons, Violin Concerto in G Minor, RV 315 'Summer': I. Allegro non molto
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Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 2: No. 30, Danse des ombres heureuses
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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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Stabat Mater, P. 77: I. Stabat Mater dolorosa
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Handel / Orch. Hale: Keyboard Suite No. 4 in D Minor, HWV 437: III. Sarabande
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Jeux d'enfants, WD. 56: II. Impromptu (La Toupie)
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": II. Largo
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Helsinki University Male Choir/Bournemouth Symphony Orchestra/Paavo Berglund
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Concerto for Violin, Oboe and Strings in D Minor, BWV. 1060: II. Adagio
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Concerto in G Major for Two Mandolins, Strings, and Continuo, Op. 21/11: II. Andante
Vivaldi: Concerto in G Major, Concerto in C Minor
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