The Orchestre de Chambre de Lausanne (OCL, Lausanne Chamber Orchestra) is a Swiss chamber orchestra based in Lausanne, Switzerland. The OCL is resident at the Salle Métropole in Lausanne. The OCL is a
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80147463a927c5ed90668df977f24e26250a407f01b0f26631f7ce9a37112403. 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/113d50dc-23be-4cd8-8ef0-81321347d765.json and https://artists.proofprofile.net/proofs/artist/113d50dc-23be-4cd8-8ef0-81321347d765.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mozart: Violin Concerto No. 3 in G Major, K. 216: I. Allegro
Weber: Clarinet Concertos No. 1 & 2 - Concertino Op. 26
Klarinettenkonzert No. 1 in F Minor, Op. 73: I. Allegro
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2cc7bce0bc3ea4d0f09e27d6d675792bf29c874ce3b4749364eb9f9d5be165. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA141692201 — a six-check JSON result.
Klarinettenkonzert No. 2 in E-Flat Major, Op. 74: I. Allegro
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Klarinettenkonzert in E-Flat Major, Op. 26: Adagio ma non troppo - Andante - Allegro
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Masques et Bergamasques, Op. 112: I. Ouverture
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Masques et Bergamasques, Op. 112: II. Menuet
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Masques et Bergamasques, Op. 112: III. Gavotte
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Masques et Bergamasques, Op. 112: IV. Pastorale
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Elégie, Op. 24 (Version for Cello and Orchestra)
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Pelléas et Mélisande Suite, Op. 80: I. Prélude
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Pelléas et Mélisande Suite, Op. 80: II. Fileuse
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Pelléas et Mélisande Suite, Op. 80: III. Sicilienne
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Pelléas et Mélisande Suite, Op. 80: IV. La mort de Mélisande
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Ballade, Op. 19 (Version for Piano and Orchestra)
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Berceuse, Op. 16 (Version for Violin and Orchestra)
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Mother and Child (from Suite for Violin and Piano)
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Mozart: Requiem K. 626, Ave verum corpus K. 618 & Exsultate, jubilate K. 165 (Live)
Violin Concerto No. 1 in B-Flat Major, K. 207: I. Allegro moderato
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Violin Concerto No. 1 in B-Flat Major, K. 207: II. Adagio
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Violin Concerto No. 1 in B-Flat Major, K. 207: III. Presto
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Violin Concerto No. 2 in D Major, K. 211: I. Allegro moderato
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Violin Concerto No. 2 in D Major, K. 211: II. Andante
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Violin Concerto No. 2 in D Major, K. 211: III. Rondeau. Allegro
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Violin Concerto No. 3 in G Major, K. 216: I. Allegro
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Violin Concerto No. 3 in G Major, K. 216: II. Adagio
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Violin Concerto No. 3 in G Major, K. 216: III. Rondeau. Allegro
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Violin Concerto No. 4 in D Major, K. 218: I. Allegro
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Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile
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Violin Concerto No. 4 in D Major, K. 218: III. Rondeau. Andante grazioso
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Violin Concerto No. 5 in A Major, K. 219 "Turkish": I. Allegro aperto
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Violin Concerto No. 5 in A Major, K. 219 "Turkish": II. Adagio
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Violin Concerto No. 5 in A Major, K. 219 "Turkish": III. Rondeau. Tempo di Menuetto
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Bach: Ode funèbre, BWV 198 & Cantates, BWV 11 "Oratorio de l'Ascension" & 187
Bach, JS: Lass, Fürstin, lass noch einen Strahl, BWV 198 "Trauer-Ode": No. 1, Chor. "Laß, Fürstin, laß noch einen Strahl"
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Bach: Magnificat, BWV 243 & Cantates, BWV 58 & 78
Bach, JS: Magnificat in D Major, BWV 243: I. Chorus. "Magnificat anima mea Dominum"
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo a pianissimo sempre
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": III. Allegro. Danza pastorale
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non molto
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": II. Adagio - Presto
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": II. Adagio molto
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "la caccia
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": I. Allegro non molto
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": III. Allegro
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Bach, JS: Mass in G Minor, BWV 235: II. Gloria
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Schönberg: Kammersymphonie Op. 9, Sechs Kleine Stücke, Op. 19 (Arr. Holliger) - Webern: Symphonie, Op. 21, Fünf Sätze, Op. 5
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Musique pour faire plaisir: I. Petite valse-Introduction - After Francis Poulenc
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Musique pour faire plaisir: II. Élégie - After Francis Poulenc
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Sept danses (d'après le ballet sur "Les Malheurs de Sophie"): I. Le jeu de la poupée
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Pärt: Fratres (1992 Version for Violin, String Orchestra and Percussion)
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Shostakovich: Chamber Symphonies Op. 73a & Op. 83a (Arr. by Barshai)
Giacomo Meyerbeer: Gli Amori di Teolinda (Live at Opera, Lausanne)
Music for Viola & Chamber Orchestra: Vaughan Williams, Martinů, Hindemith & Britten
Suite for Viola & Orchestra, Group 1: I. Prelude. Allegro moderato
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Suite for Viola & Orchestra, Group 1: II. Carol. Andante con moto
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Suite for Viola & Orchestra, Group 1: III. Christmas Dance. Allegro
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Suite for Viola & Orchestra, Group 2: I. Ballad. Lento non troppo
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Suite for Viola & Orchestra, Group 2: II. Moto Perpetuo. Allegro
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Suite for Viola & Orchestra, Group 3: I. Musette. Lento
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Suite for Viola & Orchestra, Group 3: II. Polka Mélancolique. Molto moderato
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Suite for Viola & Orchestra, Group 3: III. Galop. Allegro molto
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Rhapsody-Concerto for Viola and Orchestra, H. 337: I. Moderato
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Rhapsody-Concerto for Viola and Orchestra, H. 337: II. Molto adagio
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Trauermusik für Streichorchester mit Solobratsche: I. Langsam
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Trauermusik für Streichorchester mit Solobratsche: II. Ruhig bewegt
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Trauermusik für Streichorchester mit Solobratsche: III. Lebhaft
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Trauermusik für Streichorchester mit Solobratsche: IV. Choral "Für deinen Thron tret ich hiermit“ – Sehr langsam
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Martin & Jolivet: Works for flute & orchestra
Norbert Moret: Concerto pour trompette, pour cor et suite à l'image de temps
Montreux Choral Festival (Concert de gala du 7 avril 2002 à l'Auditorium Stravinski)
Frank Martin: Petite symphonie concertante, Etudes - Richard Strauss : Métamorphoses
Orchestre de Chambre de Lausanne - 75 ans
Stravinsky: Pulcinella Suite, Apollon Musagète, Concerto in D
Mozart: Works for Flute & Orchestra, Vol. I
Schoenberg: Verklärte Nacht & Chamber Symphony No. 2, Op. 38
Spohr: The Forgotten Master (The 4 Concertos for Clarinet)
Concerto pour clarinette et orchestre No. 1 in C Major, Op. 26: I. Adagio Allegro
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Concerto pour clarinette et orchestre No. 3 in F Minor, WoO 19: I. Allegro moderato
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Concerto pour clarinette et orchestre No. 1 in C Major, Op. 26: II. Adagio
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Concerto pour clarinette et orchestre No. 1 in C Major, Op. 26: III. Rondo Vivace
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Concerto pour clarinette et orchestre No. 3 in F Minor, WoO 19: III. Vivace non troppo
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Concerto pour clarinette et orchestre No. 2 in E-Flat Major, Op. 57: I. Allegro
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Concerto pour clarinette et orchestre No. 4 in E Minor, WoO 20: I. Allegro vivace
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Beethoven: Piano Concerto in D Major, based on Op. 61 - C.P.E. Bach: Concerto in C Minor, Wq. 43, No. 4
Piano Concerto in C Major, K. 467: II. Andante
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Requiem: Introitus - Requiem Aeternam - Kyrie - Graduale
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Requiem: Sequentia - Dies Irae - Tuba Mirum - Mors Stupebit - Judex Ergo - Rex Tremendae
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Debussy/Milhaud/Prokofiev/Shostakovich - Orchestral Works
Handel: Serse, HWV 40, Act 1, Scene 1: Arioso. "Ombra mai fù" (Serse)
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Rossini: Il barbiere di Siviglia, Act 1, No. 5: Una voce poco fa
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Klassik 100 Meisterwerke: Klassik die man gehört haben muss
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Vivaldi / Arr. Pujol: Guitar Concerto in D Major, RV 93: I. Allegro
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Vivaldi / Arr. Pujol: Guitar Concerto in D Major, RV 93: II. Largo
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Fauré: Masques et bergamasques, Op. 112: I. Ouverture. Allegro molto vivo
Boléro - From Ravel to Fauré and Chabrier
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Vivaldi / Arr. Pujol: Guitar Concerto in D Major, RV 93: III. Allegro
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Fauré: Masques et bergamasques, Op. 112: II. Menuet. Tempo di minuetto, allegro moderato
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Fauré: Masques et bergamasques, Op. 112: III. Gavotte. Allegro vivo
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Fauré: Masques et bergamasques, Op. 112: IV. Pastorale. Andantino tranquillo
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Mozart: Piano Concerto No. 12 in A Major, K. 414: III. Allegretto
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