Christian Tetzlaff (born 29 April 1966) is a German violinist who has performed internationally, with a focus on chamber music. Biography Tetzlaff was born in Hamburg. His parents were amateur musici
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 0x46b56ce69f0b204caa2efb19c9317b0e23fa211ee29bda453227ce4a8b923438. 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/75386275-6b70-49c9-a76e-0809c8ae9f33.json and https://artists.proofprofile.net/proofs/artist/75386275-6b70-49c9-a76e-0809c8ae9f33.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Widmann: Violin Concerto - Antiphon - Insel der Sirenen
Dvořák: String Sextet in A Major, Op. 48 / Schumann: 5 Stücke im Volkston, Op. 102; Fantasiestücke, Op. 73 / Reimann: Solo for Clarinet (Live)
Dvořák: Dumky & Zypressen: Shostakovich: Piano Trio No. 1 (Live)
Tchaikovsky: String Quartet No. 3 in E-Flat Minor, Op. 30, TH 113 / Shostakovich: Piano Trio No. 2 in E Minor, Op. 67 (Live)
J.S. Bach: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051; Sonata for Viola da Gamba in G Minor, BWV 1029; Violin Sonata in F Minor, BWV 1018 (Live)
Felix Mendelssohn & George Enescu: Octets for Strings (Live)
Octet in E-Flat Major, Op. 20, MWV R20: I. Allegro moderato, ma con fuoco - Live
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
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Octet in E-Flat Major, Op. 20, MWV R20: II. Andante - Live
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Octet in E-Flat Major, Op. 20, MWV R20: III. Scherzo (Allegro leggierissimo) - Live
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Octet in E-Flat Major, Op. 20, MWV R20: IV. Presto - Live
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Octet in C Major, Op. 7: I. Très modéré - Live
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Octet in C Major, Op. 7: II. Très fougueux - Live
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Octet in C Major, Op. 7: III. Lentement - Live
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Octet in C Major, Op. 7: IV. Mouvement de valse bien rythmée - Live
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Brahms, Viotti & Dvořák: Orchestral Works
Double Concerto in A Minor, Op. 102: I. Allegro
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Double Concerto in A Minor, Op. 102: II. Andante
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Double Concerto in A Minor, Op. 102: III. Vivace non troppo
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Violin Concerto No. 22 in A Minor, G. 97: I. Moderato
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Violin Concerto No. 22 in A Minor, G. 97: II. Adagio
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From the Bohemian Forest, Op. 68, B. 133: No. 5, Silent Woods
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Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: I. Allegro moderato
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Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: I. Allegro
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Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: II. Andante un poco mosso
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Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: II. Andante con moto
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Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: III. Scherzo. Allegro - Trio
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Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: III. Scherzando. Allegro moderato
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Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: IV. Rondo. Allegro vivace
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Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: IV. Allegro moderato
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Piano Trio in E-Flat Major, Op. 148, D. 897 "Notturno"
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Arpeggione Sonata in A Minor, D. 821: I. Allegro moderato
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Rondo in B Minor for Violin & Piano, Op. 70, D. 895 "Rondeau brillant"
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Arpeggione Sonata in A Minor, D. 821: II. Adagio
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Arpeggione Sonata in A Minor, D. 821: III. Allegretto
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Piano Trio No. 3 in F Minor, Op. 65, B. 130: I. Allegro ma non troppo
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Piano Trio No. 3 in F Minor, Op. 65, B. 130: II. Allegretto grazioso
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Piano Trio No. 3 in F Minor, Op. 65, B. 130: III. Poco adagio - Meno mosso
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Piano Trio No. 3 in F Minor, Op. 65, B. 130: IV. Finale. Allegro con brio
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Piano Trio No. 4 in E Minor, Op. 90, B. 166: I. Lento maestoso - Allegro quasi doppio movimento
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Piano Trio No. 4 in E Minor, Op. 90, B. 166: II. Poco adagio - Vivace non troppo
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Piano Trio No. 4 in E Minor, Op. 90, B. 166: III. Andante - Vivace non troppo
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Piano Trio No. 4 in E Minor, Op. 90, B. 166: IV. Andante moderato - Allegretto scherzando
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Piano Trio No. 4 in E Minor, Op. 90, B. 166: V. Allegro - Meno mosso
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Piano Trio No. 4 in E Minor, Op. 90, B. 166: VI. Lento maestoso - Vivace
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Beethoven: Triple Concerto & Piano Concerto No. 3
Triple Concerto for Violin, Cello & Piano in C Major, Op. 56: I. Allegro
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Triple Concerto for Violin, Cello & Piano in C Major, Op. 56: II. Largo
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Piano Concerto No. 3 in C Minor, Op. 37: I. Allegro con brio
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Piano Concerto No. 3 in C Minor, Op. 37: II. Largo
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Rachmaninoff: Piano Trio No. 2 in D Minor, Op. 9 "Trio élégiaque" (Live)
Piano Trio No. 2 in D Minor, Op. 9 "Trio élégiaque": II. Quasi variazione. Andante - Live
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Piano Trio No. 2 in C Major, Op. 87: I. Allegro
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Piano Trio No. 1 in B Major, Op. 8 (Revised 1889 Version): I. Allegro con brio
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Piano Trio No. 2 in C Major, Op. 87: II. Andante con moto
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Piano Trio No. 1 in B Major, Op. 8 (Revised 1889 Version): II. Scherzo: Allegro molto
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Piano Trio No. 1 in B Major, Op. 8 (Revised 1889 Version): III. Adagio
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Piano Trio No. 1 in B Major, Op. 8 (Revised 1889 Version): IV. Allegro
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Piano Trio No. 3 in C Minor, Op. 101: I. Allegro energico
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Piano Trio No. 3 in C Minor, Op. 101: III. Andante grazioso
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C. Schumann: Piano Trio in G Minor, Op. 17 / Schubert: String Quartet No. 13 in A Minor, D. 804 "Rosamunde"; String Trio No. 1 in B-Flat Major, D. 471 (Live)
D'un soir triste (Arr. for Piano Trio) - Live
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D'un matin de printemps (Arr. for Piano Trio) - Live
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3 Pieces for Cello and Piano: No. 1, Modéré - Live
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3 Pieces for Cello and Piano: No. 2, Sans vitesse et à l'aise - Live
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Haydn, Rossini & Schubert: Duo, Trio & Quartet
Bach: Contrapunctus XI & Beethoven: String Quartet Op. 132 & Cello Sonata Op. 5 No 1 (Live)
Schumann: Piano Trio No. 1 in D Minor, Op. 63: I. Mit Energie und Leidenschaft
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Schumann: Piano Trio No. 3 in G Minor, Op. 110: I. Bewegt, doch nicht zu rasch
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Schumann: Piano Trio No. 1 in D Minor, Op. 63: II. Lebhaft, doch nicht zu rasch
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Schumann: Piano Trio No. 3 in G Minor, Op. 110: II. Ziemlich langsam
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Schumann: Piano Trio No. 1 in D Minor, Op. 63: III. Langsam, mit inniger Empfindung
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Schumann: Piano Trio No. 3 in G Minor, Op. 110: III. Rasch
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Schumann: Piano Trio No. 1 in D Minor, Op. 63: IV. Mit Feuer
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Schumann: Piano Trio No. 3 in G Minor, Op. 110: IV. Kräftig, mit Humor
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Schumann: Piano Trio No. 2 in F Major, Op. 80: I. Sehr lebhaft
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Schumann: Fantasiestücke, Op. 88: No. 1, Romanze
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Schumann: Piano Trio No. 2 in F Major, Op. 80: II. Mit innigem Ausdruck - Lebhaft
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Schumann: Fantasiestücke, Op. 88: No. 2, Humoreske
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Schumann: Piano Trio No. 2 in F Major, Op. 80: III. In mässiger Bewegung
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Schumann: Fantasiestücke, Op. 88: No. 3, Duett
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Schumann: Piano Trio No. 2 in F Major, Op. 80: IV. Nicht zu rasch
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 1, Nicht schnell
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 2, Mit innigem Ausdruck
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 3, Andantino
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 4, Innig
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 5, Nicht zu schnell
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 6, Adagio
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Der Tod und das Mädchen, Op. 7 No. 3, D. 531 (Arr. X. van Dijk for String Quartet)
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Piano Quintet in A Major, Op. 114, D. 667 "Die Forelle": II. Andante
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Violin Sonata in A Minor, Op. 137 No. 2, D. 385: II. Andante
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String Quintet in C Major, Op. 163, D. 956: IV. Allegretto - Più allegro
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Winterreise, Op. 89, D. 911 (Excerpts): No. 20, Der Wegweiser
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Symphony No. 2 in B-Flat Major, D. 125: II. Andante
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Du bist die Ruh, Op. 59 No. 3, D. 776 (Arr. X. van Dijk for String Quartet)
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Piano Sonata in B-Flat Major, D. 960: III. Scherzo. Allegro vivace con delicatezza
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Violin Sonata in D Major, Op. 137 No. 1, D. 384: II. Andante
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Piano Sonata in C Minor, D. 958: III. Menuetto. Allegro
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Erlkönig, Op. 1, D. 328 (Arr. M. Reger for Voice & Orchestra)
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Lutosławski: Concerto for Orchestra, Partita (Version for Violin & Orchestra) & Novelette
Concerto for Orchestra: I. Intrada. Allegro maestoso
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Concerto for Orchestra: II. Capriccio notturno ed arioso. Vivace
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Concerto for Orchestra: III. Passacaglia, toccata e corale. Andante con moto - Allegro giusto
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Brahms: Violin Concerto in D Major, Op. 77 & Berg: Violin Concerto "To the Memory of an Angel" (Live)
Violin Concerto in D Major, Op. 77: I. Allegro non troppo (Live)
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Violin Concerto in D Major, Op. 77: II. Adagio (Live)
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Violin Concerto in D Major, Op. 77: III. Allegro giocoso, ma non troppo vivace (Live)
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Violin Concerto "To the Memory of an Angel": I. Andante. Allegretto
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Violin Concerto "To the Memory of an Angel": II. Allegro. Adagio
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Beethoven: Violin Sonatas, Op. 30 Nos. 1-3
Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo
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Violin Sonata No. 1 in G Major, Op. 78: II. Adagio
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Violin Sonata No. 2 in A Major, Op. 100: I. Allegro amabile
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Violin Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace
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Violin Sonata No. 2 in A Major, Op. 100: III. Allegro grazioso (quasi andante)
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Violin Sonata No. 3 in D Minor, Op. 108: I. Allegro
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Violin Sonata No. 3 in D Minor, Op. 108: II. Adagio
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Violin Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con sentimento
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Violin Sonata No. 3 in D Minor, Op. 108: IV. Presto agitato
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Dvořák: Violin Concerto in A Minor & Romance in F Minor - Suk: Fantasy in G Minor, Op. 24
Violin Concerto No. 1 in A Minor, Op. 77: I. Nocturne: Adagio
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Violin Concerto No. 1 in A Minor, Op. 77: III. Passacaglia: Andante
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Violin Concerto No. 1 in A Minor, Op. 77: IV. Burlesca: Allegro con brio
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Violin Concerto No. 2 in C-Sharp Minor, Op. 129: I. Moderato
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Schubert: Schwanengesang & String Quintet
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String Quintet in C Major, D. 956: I. Allegro ma non troppo
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Schwanengesang, D. 957: No. 6, In der ferne
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String Quintet in C Major, D. 956: II. Adagio
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Schwanengesang, D. 957: No. 4, Ständchen
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String Quintet in C Major, D. 956: III. Scherzo. Presto - Trio. Andante sostenuto
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Schwanengesang, D. 957: No. 3, Frühlingssehnsucht
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String Quintet in C Major, D. 956: IV. Allegretto - Più allegro
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Schwanengesang, D. 957: No. 3, Kriegers Ahnung
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Schwanengesang, D. 957: No. 1, Liebesbotschaft
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Schwanengesang, D. 957: No. 5, Aufenthalt
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Lieder ohne Worte, Op. 30: No. 3, Adagio non troppo
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Schwanengesang, D. 957: No. 10, Das Fischermädchen
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Schwanengesang, D. 957: No. 11, Die Stadt
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Schwanengesang, D. 957: No. 13, Der Doppelgänger
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Schwanengesang, D. 957: No. 8, Der Atlas
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Piano Quartet No. 2 in A Major, Op. 26: I. Allegro non troppo
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Piano Quartet No. 3 in C Minor, Op. 60: I. Allegro ma non troppo
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Piano Quartet No. 2 in A Major, Op. 26: II. Poco Adagio
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Piano Quartet No. 3 in C Minor, Op. 60: II. Scherzo. Allegro
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Piano Quartet No. 2 in A Major, Op. 26: III. Scherzo. Poco Allegro
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Piano Quartet No. 3 in C Minor, Op. 60: III. Andante
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Piano Quartet No. 2 in A Major, Op. 26: IV. Finale. Allegro
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Piano Quartet No. 3 in C Minor, Op. 60: IV. Allegro comodo
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Dvořák: Piano Trio No. 2; Suk: Piano Quartet, Op. 1
Violin Sonata No. 1 in G Minor, BWV 1001: I. Adagio
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Violin Partita No. 2 in D Minor, BWV 1004: I. Allemande
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Violin Sonata No. 1 in G Minor, BWV 1001: II. Fuga
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Violin Partita No. 2 in D Minor, BWV 1004: II. Courante
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Violin Sonata No. 1 in G Minor, BWV 1001: III. Siciliana
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Violin Partita No. 2 in D Minor, BWV 1004: III. Sarabande
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Violin Sonata No. 1 in G Minor, BWV 1001: IV. Presto
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Violin Partita No. 2 in D Minor, BWV 1004: IV. Gigue
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Violin Partita No. 1 in B Minor, BWV 1002: I. Allemande
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Violin Partita No. 2 in D Minor, BWV 1004: V. Chaconne
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Violin Partita No. 1 in B Minor, BWV 1002: II. Double
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Violin Sonata No. 3 in C Major, BWV 1005: I. Adagio
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Violin Partita No. 1 in B Minor, BWV 1002: III. Courante
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Violin Sonata No. 3 in C Major, BWV 1005: II. Fuga
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Violin Partita No. 1 in B Minor, BWV 1002: IV. Double
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Violin Sonata No. 3 in C Major, BWV 1005: III. Largo
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Violin Partita No. 1 in B Minor, BWV 1002: V. Sarabande
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Violin Sonata No. 3 in C Major, BWV 1005: IV. Allegro assai
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Violin Partita No. 1 in B Minor, BWV 1002: VI. Double
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Violin Partita No. 1 in B Minor, BWV 1002: VII. Tempo di borea
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Violin Partita No. 3 in E Major, BWV 1006: II. Loure
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Violin Partita No. 1 in B Minor, BWV 1002: VIII. Double
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Violin Partita No. 3 in E Major, BWV 1006: III. Gavotte en rondeau
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Violin Sonata No. 2 in A Minor, BWV 1003: I. Grave
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Violin Partita No. 3 in E Major, BWV 1006: IV. Menuet I
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Violin Sonata No. 2 in A Minor, BWV 1003: II. Fuga
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Violin Partita No. 3 in E Major, BWV 1006: V. Menuet II
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Violin Sonata No. 2 in A Minor, BWV 1003: III. Andante
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Violin Partita No. 3 in E Major, BWV 1006: VI. Bourrée
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Violin Sonata No. 2 in A Minor, BWV 1003: IV. Allegro
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Violin Partita No. 3 in E Major, BWV 1006: VII. Gigue
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Beethoven: Concerto for Violin & Orchestra in D Major, Op. 61 (Digitally Remastered)
Violin Sonata No. 32 in B-Flat Major, K. 454: II. Andante
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Mendelssohn & Schumann: Violin Concertos
Violinkonzert e-Moll, Op. 64, MWV O14: I. Allegro molto appassionato -
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Violin Concerto in D Minor, WoO 23: I. In kraftigem, nicht zu schnellem Tempo
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Violin Concerto in D Minor, WoO 23: II. Langsam
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Szymanowski: Violin Concerto No.1, Op.35; Symphony No.3, Op.27 "Song of the Night"
Violin Concerto No. 1, Op. 35: a. Vivace assai – b. Tempo comodo. Andantino – c. Vivace scherzando – d. Tempo comodo. Allegretto –
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Brahms: Violin Concerto in D Major, Op. 77: II. Adagio
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Violin Concerto No.2 in D Minor, Op.11 'A la hongroise': Romanze: Andante
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Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": III. Rondeau. Tempo di menuetto
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Concerto in D Major for Violin and Orchestra, Op. 61: III. Rondo: Allegro
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Violin Concerto No. 1 in B-Flat Major, K. 207: II. Adagio
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Violin Concerto No. 3 in G Major, K. 216: II. Adagio
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Bach, JS: Partita for Solo Violin No. 2 in D Minor, BWV 1004: V. Chaconne
The History of Classical Music: The Best of the Baroque Period
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String Quartet No. 13 in G Major, B. 192: I. Allegro moderato - Live
Dvořák: Serenade in D Minor, B. 77; String Quartet No. 13 in G Major, B. 192 (Live Recordings from Spannungen Festival 2008)
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Violin Concerto in D Major, Op. 61: II. Larghetto
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