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 0x0f8b916292cc52eca301401bf2f005afbcee9951407d704e218587c20077748e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74fee984-413b-4396-b44e-5cfd3f0b378c.json and https://artists.proofprofile.net/proofs/artist/74fee984-413b-4396-b44e-5cfd3f0b378c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Married Beau, or The Curious Impertinent, Z. 603: IV. Air
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 0x3843e9e80cc915d811686684b2a58291ea5ad3b4bd3f90696b43f2b8bfaaf74d. 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/HKI191531704.
The Married Beau, or The Curious Impertinent, Z. 603: XI. March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675d444be0335dd49ccc64f8f08686dbae0016ffd3f04ffa7998c249250e0e5f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HKI191531709.
Sir Anthony Love, or The Rambling Lady, Z. 588: II. Pursuing Beauty, Men Descry
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193a1ef53868b491c0309c8aed5c01bdf14809d2f4b2cc48aaa10e3c1211899d. 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/HKI191531720.
Vaňhal: Missa Pastoralis - Missa Solemnis
Serse (Xerxes), Hwv 40 (arr. for oboe and orchestra): Act I: Ombra mai fu, "largo"
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Messiah, Hwv 56: Part I: Pastoral Symphony, "pifa"
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Concerto Grosso in B Minor, Op. 6, No. 12, Hwv 330: Iii. Aria: Larghetto e piano
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Rinaldo, Hwv 7: Act Ii Scene 4: Lascia ch'io pianga
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Concerto Grosso in B-flat Major, Op. 3, No. 2, Hwv 313: Ii. Largo
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Water Music: Suite No. 3 in G Major, Hwv 350: I. Sarabande
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Oboe Concerto No. 3 in G Minor, Hwv 287: Iii. Sarabande: Largo
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Ode for St. Cecilia's Day, Hwv 76: Air: What passion cannot Music raise
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Keyboard Suite No. 2 (Set I) in F Major, Hwv 427: I. Adagio
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Concerto Grosso in A Minor, Op. 6, No. 4, Hwv 322: I. Larghetto affettuoso
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Theodora, Hwv 68: Act I Scene 5: Air: Angels, ever bright and fair
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Organ Concerto No. 6 in B-flat Major, Op. 4, No. 6, Hwv 294: Ii. Larghetto
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Recorder Sonata in F Major Op. 1, No. 11, Hwv 369: I. Larghetto
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Concerto Grosso in A Minor, Op. 6, No. 4, Hwv 322: Iii. Largo e piano
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Water Music: Suite No. 2 in D Major, Hwv 349: Iv. Lentement
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Concerto Grosso in D Major, Op. 6, No. 5, Hwv 323: Iv. Largo
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Ode for the Birthday of Queen Anne, Hwv 74, "eternal Source of Light Divine": Eternal Source of Light Divine
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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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12 Hours of Christmas - A Day of Classical Christmas Music
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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An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
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Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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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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Laudate pueri Dominum, RV 600: Sit nomen Domini benedictum
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Laudate pueri Dominum, RV 600: A solis ortu
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Laudate pueri Dominum, RV 600: Excelsus super omnes gentes
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Laudate pueri Dominum, RV 600: Quis sicut Dominus
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Stabat Mater, RV 621: Eia Mater, fons amoris
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Clarae stellae, scintillate, RV 625: Coeli repleti iam
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Charpentier, M.-A.: Messe de Minuit pour Noel / Te Deum
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Israel in Egypt, HWV 54: Part III, Moses Song: Moses and the children of Israel sung this song (Chorus)
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Israel in Egypt, HWV 54: Part I, The Lamentation of the Israelites for the death of Joseph: How is the mighty fall'n I (Chorus)
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Israel in Egypt, HWV 54: Part III, Moses Song: And I will exalt Him (Chorus)
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Israel in Egypt, HWV 54: Part III, Moses Song: Duet: The Lord is a man of war (2 Basses)
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Israel in Egypt, HWV 54: Part I, The Lamentation of the Israelites for the death of Joseph: How is the mighty fall'n III (Chorus)
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Israel in Egypt, HWV 54: Part I, The Lamentation of the Israelites for the death of Joseph: The merciful goodness of the Lord endureth forever (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: And the children of Israel sighed (Alto, Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: They loathed to drink of the river (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: He spake the word (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: He gave them hailstones for rain (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: He smote all the first-born of Egypt (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: But the waters overwhelmed their enemies (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: And Israel saw that great work (Chorus)
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Israel in Egypt, HWV 54: Part II, The Exodus: And believed the Lord and His servant Moses (Chorus)
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Dido and Aeneas, Z. 626: When I Am laid in earth
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Terrific Trumpet: Best Loved Classical Trumpet Music
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
The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
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2 Dialogues with Postscript (Version for Piano & String Orchestra): No. 3, Morning Serenade
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Andersen Fairy Tales Suite: I. The Rose-Tree
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Le bourgeois gentilhomme: Chaconne des Scaramouches, Frivelins et Arlequins
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Consolations, S. 172 "6 Pensées poétiques": No. 3, Lento placido
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Sea-Murmurs (Arr. J. Heifetz for Cello & Piano)
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Leaves from a Child's Sketchbook: In the Meadows
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4 Short Pieces for Violin & Piano, H. 104: No. 2, Spring Song (Version for Cello & Piano)
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Lyric Pieces, Book 1, Op. 12: No. 1, Arietta
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Orphée et Eurydice, Act II, Scene 2: Ballo
The Drottningholm Court Theatre Orchestra
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Carnival of the Animals, R. 125: XIII. The Swan
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3 Romanzen, Op. 22: No. 1, Andante molto (Arr. For cello and piano)
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2 Pieces for Strings from Henry V: No. 2, Touch Her Soft Lips and Part
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Suite bergamasque, L. 75: III. Clair de lune (Featured in "Man on Fire")
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The Macau Bride Ballet Suite, Op. 34: IV. The First Glance
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Triakontameron: No. 11, Alt-Wien (Arr. J. Heifetz for Violin & Piano)
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Valses poéticos: No. 3, Tempo de Vals lento (Arr. P. Breiner for guitar and orchestra)
Polish National Radio Symphony Orchestra
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Chanson de nuit et Chanson de matin, Op. 15: No. 2, Chanson de matin
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Petite suite de concert, Op. 77: III. Un Sonnet d'Amour
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The Mermaid Ballet Suite: III. Waterweed (Version for piano)
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Orquesta Juvenil Universitaria Eduardo Mata
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3 Latin American Sketches: No. 2, Paisaje Mexicano
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Toy Symphony: And Other Fun Classical Favourites
Music for the Royal Fireworks, HWV 351: IV. La Rejouissance
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Cassation in G Major "Toy Symphony": I. Allegro
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The Four Seasons: Violin Concerto in G Minor, Op. 8, No. 2, RV 315, "L'estate" (Summer): I. Allegro non molto
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The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Concerto for 2 Mandolins in G Major, RV 532: II. Andante
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Concerto for Strings in G Major, RV 151 "Alla rustica"
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Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": Flute Concerto in D Major, Op. 10, No. 3, RV 428, "Il gardellino": II. Cantabile
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Concerto for 2 Trumpets in C Major, RV 537: I. Allegro
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The 4 Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
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Concerto for 4 Violins in B Minor, Op. 3 No. 10, RV 580: I. Allegro
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Aria 'Rofilis' in D Minor, BuxWV. 248:1 Variatio 1 - Variatio 3
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Suite in G Major, BuxWV. 240: I. Allemande
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Suite in D Minor, BuxWV. 234: IV. Double
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Suite in D Minor, BuxWV. 234: V. Sarabande I
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Suite in D Minor, BuxWV. 234: VI. Sarabande II
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Auf meinen lieben Gott in E Minor, BuxWV. 179: III. Corrente
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Aria 'More Palatino' in C Major, BuxWV. 247: Variatio 3
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Handel: Concerti Grossi, Op. 6, Nos. 1-12
Magnificat in G Minor, RV 611: Et exsultavit spiritus meus
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Magnificat in G Minor, RV 611: Quia respexit
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Magnificat in G Minor, RV 611: Et misericordia
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Magnificat in G Minor, RV 611: Fecit potentiam
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Magnificat in G Minor, RV 611: Suscepit Israel
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Salve Regina in F Major, RV 617: Ad te clamamus
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Nisi Dominus, RV 608: Cum dederit dilectis suis
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Handel: Water Music / Music for the Royal Fireworks
Water Music: Suite No. 2 in D Major, HWV 349: IV. Rigaudon
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Water Music: Suite No. 2 in D Major, HWV 349: V. Lentement
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Water Music: Suite No. 3 in G Major, HWV 350: I. Sarabande
Music for the Royal Fireworks, HWV 351: IV. La rejouissance
Sammartini, G.B.: Symphonies J-C 4, 9, 16, 23, 36, 62
Charpentier, M.-A.: Noels & Christmas Motets, Vol. 2
Purcell: Theatre Music, Vol. 1 - Amphitryon / Sir Barnaby Whigg / The Gordian Knot Unty'D / Circe
Amphitryon, Z. 572, "The 2 Sosias": I. Overture
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Amphitryon, Z. 572, "The 2 Sosias": III. Hornpipe
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Amphitryon, Z. 572, "The 2 Sosias": Celia, That I Once Was Blest (Soprano)
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Amphitryon, Z. 572, "The 2 Sosias": IV. Scotch Tune
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Amphitryon, Z. 572, "The 2 Sosias": V. Air
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Amphitryon, Z. 572, "The 2 Sosias": VII. Hornpipe
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Amphitryon, Z. 572, "The 2 Sosias": VIII. Borree
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The Gordion Knot Unty'd, Z. 597: Second Music II: Minuet
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The Gordion Knot Unty'd, Z. 597: First Act Tune: Air
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The Gordion Knot Unty'd, Z. 597: Second Act Tune: Rondo Minuet
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The Gordion Knot Unty'd, Z. 597: Fourth Act Tune: Jig
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Circe, Z. 575: Their Necessary Aid You Use (Tenor, Bass, Chorus)
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The Tempest, Z. 631, "The Enchanted Island": Masque of Spirits, Act II, No. 2 (Trio and Chorus)
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The Tempest, Z. 631, "The Enchanted Island": Masque of Spirits, Act II, No. 4 (Air)
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The Tempest, Z. 631, "The Enchanted Island": Masque of Spirits, Act II, No. 5 (Dance of the Winds)
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The Tempest, Z. 631, "The Enchanted Island": Masque of Spirits, Act II, No. 6 (Song and Chorus)
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The Tempest, Z. 631, "The Enchanted Island": Neptune' Masque, Act V, No. 11 (Recitative and Air Amphitrite)
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The Tempest, Z. 631, "The Enchanted Island": Neptune' Masque, Act V, No. 12 (Recitative and Air)
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The Tempest, Z. 631, "The Enchanted Island": Neptune' Masque, Act V, No. 14 (Air)
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The Tempest, Z. 631, "The Enchanted Island": Neptune' Masque, Act V, No. 15 (Air)
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If ever I more riches did desire, Z. 544
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Charpentier, M.-A.: Noels and Christmas Motets, Vol. 2
Un flambeau, Jeanette-Isabelle, H. 460c: Noel: Un flambeau, Janette, Isabelle!, H. 460c
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Wedding March: Classical Music for Your Perfect Wedding
Canon & Gigue in D Major, P. 37: Canon and Gigue in D Major: Canon
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Le nozze di Figaro (The Marriage of Figaro), K. 492: Overture
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A Bride's Guide To Wedding Music For Civil Ceremonies
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