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 0x2a71c9235c99dd1d4c43dae926d013affa25a42b62c22c1d15f3ec3263fa10d2. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18eb7d07-ead0-4d05-81bb-f077108a89cb.json and https://artists.proofprofile.net/proofs/artist/18eb7d07-ead0-4d05-81bb-f077108a89cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bahr, Gunilla Von: Solflojt 2/3 (Sun-Flute 2/3)
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 0x2adb915ad9da767b56c05d6a25c238828ddda2da799ce03bea0247c3a1ba78dd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEAEB8175050.
The 50 Darkest Pieces of Classical Music
Totentanz (Dance of Death) for Piano and Orchestra
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The Nutcracker, Op. 71a: XVC. Pas de deux - Variation II: Dance of the Sugar-Plum Fairy
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Peer Gynt Suite No. 1, Op. 46: In the Hall of the Mountain King
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Morceaux de Fantasie, Op. 3: II. Prélude in C-Sharp Minor, "The Bells of Moscow": Lento
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Chamber Symphony, Op. 110a (after String Quartet No. 8): II. Allegro molto
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The Planets, Op. 32: Saturn, the Bringer of Old Age
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Romeo and Juliet, Ballet Suite No. 2, Op. 64: I. Montagues and Capulets
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Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27:2, "Moonlight Sonata": Adagio sostenuto
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Le carnaval des animaux (The Carnival of the Animals): VII. Aquarium
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Symphony No. 40 in G Minor, K. 550: Allegro molto
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Concerto in C Major for Sopranino Recorder, Strings and B.C, RV 443: II. Largo
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The Planets, Op. 32: Mars, the Bringer of War
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Music for Strings, Percussion and Celesta, Sz 106: III. Adagio
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Sonata No. 2 in B-Flat Minor for Piano, Op. 35: III. Marche Funébre (Funeral March): Lento
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Concerto No. 10 in D Minor for Organ and Orchestra, HWV 309, Op. 7: I. Adagio
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Messa da Requiem: Dies irae - Tuba mirum
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The Four Seasons (Le quattro stagioni), Op. 8 - Violin Concerto No. 2 in G Minor, RV 315, "Summer" (L'estate): III. Presto
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Masonic Funeral Music in C Minor, K. 477 (Maurerische Trauermusic)
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Symphony No. 3 in E-Flat Major, Op. 55, "Eroica": II. Marcia funébre: Adagio assai
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Sonata in D Minor for Cello and Piano, Op. 40: II. Allegro
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Carmina Burana: Fortunae plango vulnera (I bewail the wounds of fate)
Arthur Rubinstein Philharmonic Orchestra
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Adagio in G Minor for Strings and Organ, "Albinoni's Adagio"
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Symphonie Fantastique, Op. 14, "Episode de la vie d'un artiste": IV. Marche au Supplice (March to the Scaffold)
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Lemminkäinen Suite, Op. 22: The Swan of Tuonela: Andante molto sostenuto
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Concerto Grosso No. 8 in G Minor, Op. 6, "Christmas Concerto": Allegro
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Concerto in D Minor for Oboe and Strings, Op. 1: II. Adagio
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Toccata and Fugue in D Minor for Organ, BWV 565
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": III. Presto agitato
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The Planets, Op. 32: Neptune, the Mystic
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Concerto in D Major for Guitar and Strings, RV 93: II. Largo
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Spiegel im Spiegel for Violin and Piano (1978)
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Suite No. 1 in G Major for Solo Cello, BWV 1007: I. Prelude
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Orpheus and Eurydice: Dance of the Blessed Spirits
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Lieder ohne Worte (Songs without Words), Book 5, Op. 62: Fruhlingslied, Op. 62, No. 6 [arr. For flute]
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String Quartet in F Major, Op. 3, No. 5, Hob. III:17, "Serenade": String Quartet in F Major, Op. 3/5, Hob.III:17, "Serenade" (attrib. Hoffstetter): II. — [Attrib. Haydn]
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Cello Concertino, Op. 45, No. 10: II. Siciliano: Andante sostenuto
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Double Bass Concertino, Op. 45, No. 11: II. Arioso. Lento
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Double Bass Concertino, Op. 45, No. 11: III. Finale. Allegro vivace
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Trombone Concertino, Op. 45 No. 7: I. Preludium: Allegro pomposo
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Trombone Concertino, Op. 45 No. 7: II. Aria. Andante sostenuto
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Trombone Concertino, Op. 45 No. 7: III. Finale. Allegro giocoso
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Symphony No. 2 in G Minor, Op. 34: I. Allegro energico
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Symphony No. 2 in G Minor, Op. 34: II. Andante
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Symphony No. 2 in G Minor, Op. 34: III. Scherzo
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Symphony No. 2 in G Minor, Op. 34: IV. Finale
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Swedish Rhapsody No. 1, Op. 19, "Midsommarvaka"
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Serenade for Strings , Op. 11: I. Preludium
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Serenade for Strings , Op. 11: II. Andante espressivo
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Serenade for Strings , Op. 11: III. Scherzo
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Serenade for Strings , Op. 11: IV. Marcia
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Symphony No. 3 in D Major, Op. 10, "West Coast Pictures": I. Soldis (Sun Haze)
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Symphony No. 3 in D Major, Op. 10, "West Coast Pictures": II. Storm
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Symphony No. 3 in D Major, Op. 10, "West Coast Pictures": III. Sommarnatt (Summer Night)
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Concerto No. 1 for Strings: I. Allegro (attacca)
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Concerto No. 1 for Strings: III. Largamente
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Resa till Amerika (Journey to America) Orchestral Suite: Intermezzo, "Visa från Utanmyra"
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Symphony No. 1 in C Major: I. Allegro con brio
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Symphony No. 1 in C Major: III. Adagio molto e cantabile
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Symphony No. 1 in C Major: IV. Finale: Allegro molto
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Divertimento No. 2, Op. 15: I. Allegro con spirito
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82189a474db990bf44e115cc83abd27563e92b4e8bb116794f443b0755ccaf1d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEAGA9511050.
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Estrella de Soria: Overture (Largo - Allegro assai - Molto andante)
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Sisyphus Suite: Introduction - The Banquet - The Young Girls' Dance - The Dance with Death - Masque Dance - Sisyphus' Victorious Entrance - The Dance of Life
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Symphony No. 3, "Facets": I. Largamente (attacca)
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Symphony No. 3, "Facets": II. Tranquillo, ma fluente (attacca)
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Symphony No. 3, "Facets": III. Prestissimo (attacca)
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Symphony No. 3, "Facets": IV. Allegro, molto deciso e ritmico (attacca)
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Sinfonia No. 20 in E Minor: I. Allegro staccato
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Sinfonia No. 20 in E Minor: II. Larghetto
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Sinfonia No. 20 in E Minor: III. Allegro assai
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Pastoralsvit, Op. 19: II. Romance. Adagio
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Suite No. 3, Op. 19 No. 1: I. Prelude. Adagio
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Mozart: Piano Concerto No. 21 - Sinfonia Concertante
Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": 1. Allegro maestoso
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Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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Sinfonia concertante in E-Flat Major, K. 364: I. Allegro maestoso
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Sinfonia concertante in E-Flat Major, K. 364: III. Presto
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Two Sentimental Romances for Violin and Orchestra, Op. 28: No. 1 in A Major
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Assaggio in A Major for Solo Violin, BeRl 301: I. Andante
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Assaggio in A Major for Solo Violin, BeRl 301: II. Allegro
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Assaggio in A Major for Solo Violin, BeRl 301: III. Moderato
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Assaggio in A Major for Solo Violin, BeRl 301: IV. Allegro assai
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Violin Sonata No. 2 in G Major for Violin and Piano: I. Allegro moderato
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Violin Sonata No. 2 in G Major for Violin and Piano: II. Lento
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Violin Sonata No. 2 in G Major for Violin and Piano: III. Allegro con fuoco
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Violin Concerto No. 2: I. Allegro moderato
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Sonata No. 1 for Solo Violin, Op. 12: I. Largo ed appasionato - Allegro
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Sonata No. 1 for Solo Violin, Op. 12: II. Andante con variazioni
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Duo in D Major for Violin and Piano: I. Allegro
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Duo in D Major for Violin and Piano: II. Romance: Andante
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Duo in D Major for Violin and Piano: III. Allegro giocoso
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Violin Sonata No. 4 in B Minor, Op. 47: I. Andante espressivo
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Violin Sonata No. 4 in B Minor, Op. 47: II. Scherzo vivacissimo
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Violin Sonata No. 4 in B Minor, Op. 47: III. Andante con moto
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Violin Sonata No. 4 in B Minor, Op. 47: IV. Allegro vivace
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Assaggio in C Minor for Solo Violin, BeRl 310: I. Grave
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Assaggio in C Minor for Solo Violin, BeRl 310: II. Allegro
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Assaggio in C Minor for Solo Violin, BeRl 310: III. Lento
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Assaggio in C Minor for Solo Violin, BeRl 310: IV. Allegro non troppo
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Sonata No. 2 for Two Violins: Allegro con allegrezza - Moderato - Allegro veloce
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Suite No. 1 for Violin and Piano, "in modo antico": I. Intonation - Andante moderato
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Suite No. 1 for Violin and Piano, "in modo antico": II. Menuett - Allegretto poco vivo
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Suite No. 1 for Violin and Piano, "in modo antico": III. Sarabande - Largamente
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Suite No. 1 for Violin and Piano, "in modo antico": IV. Tambourin - Allegretto poco rubato
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Sonata No. 2 for Solo Violin: I. Moderato energico
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Sonata No. 2 for Solo Violin: II. Allegro moderato
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Sonata alla leggenda for Violin and Piano: I. Allegro moderato
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Sonata alla leggenda for Violin and Piano: II. Andante
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Sonata alla leggenda for Violin and Piano: III. Scherzo - Vivace ma discrezione
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Sonatina for Violin and Piano, Op. 15: I. Allegro
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Sonatina for Violin and Piano, Op. 15: II. Andantino
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Sonatina for Violin and Piano, Op. 15: III. Vivace
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Two Sentimental Romances for Violin and Orchestra, Op. 28: No. 2 in F Minor
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Violin Sonata in A Minor, Op. 1: I. Allegro moderato ed energico
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Violin Sonata in A Minor, Op. 1: II. Andante cantabile
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Violin Sonata in A Minor, Op. 1: III. Allegro ma non troppo
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Debussy / Mozart / Grieg / Bach: Sun-Flute
Adagio in G Minor (arr. For flute, organ and orchestra) [Attrib. To Albinoni]
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Moderen (the Mother), Op. 41, FS 94: Taagen letter [the Fog Is lifting]
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Orchestral Suite No. 3 in D Major, BWV 1068: Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on the G String"
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Larsson: Saxophone Concerto / Divertimento No. 2 / Horn Concertino / Quattro Tempi
Wirén: Violin Concerto / Triptyk / Wind Quintet / String Quartet No. 5
Bach, J.S.: B Minor Suite / Vivaldi: 3 Piccolo Concertos
Recorder Concerto in C Major, RV 443: II. Largo
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Recorder Concerto in A Minor, RV 445: III. Allegro (Version for Piccolo & Orchestra)
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Flute Sonata in A Minor, Wq. 132, H. 562: III. Allegro
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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