The Quartetto Italiano () was a string quartet founded in Reggio Emilia in 1945. They made their debut in 1945 in Carpi when all four players were still in their early 20s. They were originally named
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 0x3311d4a6ba114381fa42ddab10eac51de2c22b306c63126b362b4a459642d6a8. 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/b8e1ff8a-73c6-4eeb-9ae9-a7312134da4a.json and https://artists.proofprofile.net/proofs/artist/b8e1ff8a-73c6-4eeb-9ae9-a7312134da4a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Galuppi, Boccherini & Cambini: Quartetti per archi
Gabrieli, Marini, Neri, Vitali, Scarlatti & Vivaldi: Il quartetto d'archi in Italia nel XVII secolo
Webern: Complete Music for String Quartet
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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Brahms: String Quartet No. 3 in B-Flat Major, Op. 67: I. Vivace
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Mozart: String Quartets Nos. 14 "Spring" & 15
Haydn: String Quartet, Op. 33 No. 3 "The Bird" - Hoffstetter: String Quartet, Op. 3 No. 5 "Serenade"
Haydn: String Quartets, Op. 76 Nos. 2 "Fifths" & 4 "Sunrise"
Haydn: String Quartet in B-Flat Major, Op. 76 No. 4, Hob. III:78 "Sunrise": I. Allegro con spirito
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Haydn: String Quartet in B-Flat Major, Op. 76 No. 4, Hob. III:78 "Sunrise": II. Adagio
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Schumann: String Quartet, Op. 41 No. 3 - Mozart: String Quartet No. 3, K. 156
Ravel: String Quartet - Stravisnky: Three Pieces for String Quartet
Quartetto Italiano: The complete RIAS Recordings (Berlin, 1951-1963)
String Quartet No. 1 in A Minor, Op. 41 No. 1: I. Introduzione. Andante espressivo - Allegro
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String Quartet No. 3 in A Major, Op. 41 No. 3: I. Andante espressivo - Allegro molto moderato
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Boccherini, Mozart & Beethoven: String Quartets (Live)
String Quartet in G Major, Op. 44, No. 4, G. 223, "La Tiranna": I. Presto - Live
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String Quartet in G Major, Op. 44, No. 4, G. 223, "La Tiranna": II. Tempo di minuetto - Trio - Live
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String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": I. Allegro vivace assai - Live
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String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": II. Menuetto. Moderato - Live
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String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": III. Adagio - Live
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String Quartet No. 17 in B-Flat Major, K. 458 "Hunt": IV. Allegro assai - Live
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String Quartet No. 15 in A Minor, Op. 132: I. Assai sostenuto - Allegro - Live
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String Quartet No. 15 in A Minor, Op. 132: II. Allegro ma non tanto - Live
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String Quartet No. 15 in A Minor, Op. 132: IV. Alla marcia, assai vivace - Più allegro - - Live
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String Quartet No. 15 in A Minor, Op. 132: V. Allegro appassionato - Live
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Quartetto Italiano Plays Schubert, Debussy & Milhaud
Mozart: The String Quartets, Vol.3 (Complete Mozart Edition)
Mozart: The String Quartets, Vol.2 (Complete Mozart Edition)
Mozart: The String Quartets, Vol.1 (Complete Mozart Edition)
String Quartet No. 12 in E-Flat Major, Op. 127: I. Maestoso – Allegro
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String Quartet No. 12 in E-Flat Major, Op. 127: II. Adagio, ma non troppo e molto cantabile – Andante con moto – Adagio molto espressivo
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String Quartet No. 15 in A Minor, Op. 132: III. Molto adagio. Heiliger Dankgesang – Andante. Neue kraft fühlend
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String Quartet No. 14 in C-Sharp Minor, Op. 131: I. Adagio ma non troppo e molto espressivo
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String Quartet No. 14 in C-Sharp Minor, Op. 131: II. Allegro molto vivace
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String Quartet No. 14 in C-Sharp Minor, Op. 131: III. Allegro moderato
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String Quartet No. 14 in C-Sharp Minor, Op. 131: IV. Andante, ma non troppo e molto cantabile
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Debussy: String Quartet in G minor / Ravel: String Quartet in F
String Quartet In G Minor, Op. 10, L. 85: 1. Animé et très décidé
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String Quartet In G Minor, Op. 10, L. 85: 2. Scherzo (Assez vif et bien rythmé)
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String Quartet In G Minor, Op. 10, L. 85: 3. Andantino doucement expressif
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String Quartet In G Minor, Op. 10, L. 85: 4. Très modéré - Très mouvementé - Très animé
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String Quartet In F Major, M.35: 1. Allegro moderato. Très doux
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String Quartet In F Major, M.35: 2. Assez vif. Très rythmé
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String Quartet In F Major, M. 35: 4. Vif et agité
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J. Haydn: Streichquartett Nr.3, Op. 76 H.III Nr.77 "Emperor"
String Quartet No. 1 in F, Op. 18 No. 1: 1. Allegro con brio
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String Quartet No. 3 in D, Op. 18 No. 3: 1. Allegro
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String Quartet No. 5 in A, Op. 18 No. 5: 1. Allegro
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String Quartet No. 7 in F, Op. 59 No. 1 - "Rasumovsky No. 1": 1. Allegro
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String Quartet No. 8 in E minor, Op. 59 No. 2 -"Rasumovsky No. 2": 1. Allegro
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String Quartet No. 9 in C, Op. 59 No. 3 - "Rasumovsky No. 3": 1. Introduzione (Andante con moto) - Allegro vivace
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String Quartet No. 1 in F, Op. 18 No. 1: 2. Adagio affettuoso ed appassionato
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String Quartet No. 3 in D, Op. 18 No. 3: 2. Andante con moto
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String Quartet No. 5 in A, Op. 18 No. 5: 2. Menuetto
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String Quartet No. 7 in F, Op. 59 No. 1 - "Rasumovsky No. 1": 2. Allegretto vivace e sempre scherzando
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String Quartet No. 9 in C, Op. 59 No. 3 - "Rasumovsky No. 3": 2. Andante con moto quasi allegretto
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String Quartet No. 1 in F, Op. 18 No. 1: 3. Scherzo (Allegro molto)
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String Quartet No. 3 in D, Op. 18 No. 3: 3. Allegro
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String Quartet No. 5 in A, Op. 18 No. 5: 3. Andante cantabile
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String Quartet No. 7 in F, Op. 59 No. 1 - "Rasumovsky No. 1": 3. Adagio molto e mesto
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String Quartet No. 8 in E minor, Op. 59 No. 2 -"Rasumovsky No. 2": 3. Allegretto
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String Quartet No. 9 in C, Op. 59 No. 3 - "Rasumovsky No. 3": 3. Menuetto (Grazioso)
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String Quartet No. 12 in E-Flat Major, Op. 127: III. Scherzando vivace
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String Quartet No. 1 in F, Op. 18 No. 1: 4. Allegro
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String Quartet No. 3 in D, Op. 18 No. 3: 4. Presto
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String Quartet No. 5 in A, Op. 18 No. 5: 4. Allegro
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String Quartet No. 7 in F, Op. 59 No. 1 - "Rasumovsky No. 1": 4. Thème russe (Allegro)
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String Quartet No. 8 in E minor, Op. 59 No. 2 -"Rasumovsky No. 2": 4. Finale (Presto)
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String Quartet No. 9 in C, Op. 59 No. 3 - "Rasumovsky No. 3": 4. Allegro molto
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String Quartet No. 12 in E-Flat Major, Op. 127: IV. Finale. Allegro
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String Quartet No. 2 in G, Op. 18 No. 2: 1. Allegro
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String Quartet No. 4 in C minor, Op. 18 No. 4: 1. Allegro ma non tanto
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String Quartet No. 6 in B flat, Op. 18 No. 6: 1. Allegro con brio
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String Quartet No. 11 in F minor, Op. 95 - "Serioso": 1. Allegro con brio
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String Quartet No. 10 in E flat, Op. 74 - "Harp": 1. Poco adagio - Allegro
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String Quartet No. 16 in F Major, Op. 135: I. Allegretto
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String Quartet No. 2 in G, Op. 18 No. 2: 2. Adagio cantabile - Allegro - Tempo I
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String Quartet No. 4 in C minor, Op. 18 No. 4: 2. Andante scherzoso, quasi allegretto
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String Quartet No. 6 in B flat, Op. 18 No. 6: 2. Adagio ma non troppo
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String Quartet No. 11 in F minor, Op. 95 - "Serioso": 2. Allegretto ma non troppo
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String Quartet No. 16 in F Major, Op. 135: II. Vivace
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String Quartet No. 4 in C minor, Op. 18 No. 4: 3. Menuetto (Allegretto)
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String Quartet No. 6 in B flat, Op. 18 No. 6: 3. Scherzo (Allegro)
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String Quartet No. 11 in F minor, Op. 95 - "Serioso": 3. Allegro assai vivace ma serioso
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String Quartet No. 10 in E flat, Op. 74 - "Harp": 3. Presto - Più presto quasi prestissimo
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String Quartet No. 4 in C minor, Op. 18 No. 4: 4. Allegro
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String Quartet No. 6 in B flat, Op. 18 No. 6: 4. La Malinconia (Adagio - Allegretto quasi allegro - Adagio - Allegretto - Poco adagio - Prestissimo)
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String Quartet No. 11 in F minor, Op. 95 - "Serioso": 4. Larghetto espressivo - Allegretto agitato
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String Quartet No. 10 in E flat, Op. 74 - "Harp": 4. Allegretto con variazioni
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String Quartet No. 14 in D Minor, D.810 -"Death and the Maiden": 1. Allegro
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String Quartet No. 15 in G, D.887: 1. Allegro molto moderato
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String Quartet No. 14 in D Minor, D.810 -"Death and the Maiden": 2. Andante con moto
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String Quartet No. 14 in D Minor, D.810 -"Death and the Maiden": 3. Scherzo (Allegro molto)
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String Quartet No. 14 in D Minor, D.810 -"Death and the Maiden": 4. Presto
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String Quartet No. 15 in G, D.887: 4. Allegro assai
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String Quartet No. 13 in A Minor, D. 804 "Rosamunde": I. Allegro ma non troppo
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String Quartet No. 12 In C Minor, D.703 - "Quartettsatz": String Quartet No. 12 In C Minor, D.703 - "Quartettsatz"
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String Quartet No. 13 in A Minor, D. 804 "Rosamunde": II. Andante
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String Quartet No. 13 in A Minor, D. 804 "Rosamunde": III. Menuetto. Allegretto
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String Quartet No. 13 in A Minor, D. 804 "Rosamunde": IV. Allegro moderato
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Grandi maestri dell'interpretazione: Quartetto Italiano (Live)
String Quartet No. 1 in G, K.80: 1. Adagio
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String Quartet No. 6 in B flat, K.159: 1. Andante
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String Quartet No. 10 in C, K.170: 1. Andante
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String Quartet No. 14 in G, K.387: 1. Allegro vivace assai
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String Quartet No. 1 in G, K.80: 2. Allegro
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String Quartet No. 6 in B flat, K.159: 2. Allegro
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String Quartet No. 10 in C, K.170: 2. Menuetto
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String Quartet No. 14 in G, K.387: 2. Allegretto
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String Quartet No. 1 in G, K.80: 3. Menuetto
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String Quartet No. 6 in B flat, K.159: 3. Rondo (Allegro grazioso)
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String Quartet No. 10 in C, K.170: 3. Un poco adagio
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String Quartet No. 14 in G, K.387: 3. Andante cantabile
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String Quartet No. 1 in G, K.80: 4. Rondo
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String Quartet No. 7 in E flat, K.160: 1. Allegro
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String Quartet No. 10 in C, K.170: 4. Rondeaux (Allegro)
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String Quartet No. 2 in D, K.155: 1. Allegro
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String Quartet No. 7 in E flat, K.160: 2. Un poco adagio
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String Quartet No. 11 in E flat, K.171: 1. Adagio - Allegro assai
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String Quartet No. 2 in D, K.155: 2. Andante
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String Quartet No. 7 in E flat, K.160: 3. Presto
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String Quartet No. 11 in E flat, K.171: 2. Menuetto
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String Quartet No. 2 in D, K.155: 3. Molto allegro
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String Quartet No. 8 in F, K.168: 1. Allegro
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String Quartet No. 11 in E flat, K.171: 3. Andante
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String Quartet No. 3 In G, K.156: 1. Presto
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String Quartet No. 8 in F, K.168: 2. Andante
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String Quartet No. 11 in E flat, K.171: 4. Allegro assai
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String Quartet No. 3 In G, K.156: 2. Adagio
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String Quartet No. 8 in F, K.168: 3. Menuetto
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String Quartet No. 12 in B flat, K.172: 1. Allegro spiritoso
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String Quartet No. 3 In G, K.156: 3. Tempo di Menuetto
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String Quartet No. 8 in F, K.168: 4. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191fe21027e12623bdea3d750f1fa72b748f3699801fd53ad84cda68651bdf90. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507100852 — a six-check JSON result.
String Quartet No. 12 in B flat, K.172: 2. Adagio
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String Quartet No. 3 In G, K.156: 2a. Adagio (original version)
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String Quartet No. 9 in A, K.169: 1. Molto allegro
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String Quartet No. 12 in B flat, K.172: 3. Menuetto
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String Quartet No. 4 in C, K.157: 1. Allegro
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String Quartet No. 9 in A, K.169: 2. Andante
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String Quartet No. 12 in B flat, K.172: 4. Allegro assai
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String Quartet No. 4 in C, K.157: 2. Andante
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String Quartet No. 9 in A, K.169: 3. Menuetto
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String Quartet No. 13 in D Minor, K. 173: I. (Allegro ma molto moderato)
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String Quartet No. 4 in C, K.157: 3. Presto
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String Quartet No. 9 in A, K.169: 4. Rondeaux (Allegro)
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String Quartet No. 13 in D Minor, K. 173: II. Andantino grazioso
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String Quartet No. 5 in F, K.158: 1. Allegro
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String Quartet No. 13 in D Minor, K. 173: III. Menuetto
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String Quartet No. 5 in F, K.158: 2. Andante un poco allegretto
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String Quartet No. 13 in D minor, K.173: IV. (Allegro)
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String Quartet No. 5 in F, K.158: 3. Tempo di Menuetto
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Schubert: String Quartets Nos.13 & 14 "Death & the Maiden"
String Quartet No. 13 in A Minor, D.804 - "Rosamunde": 1. Allegro ma non troppo
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String Quartet No. 13 in A Minor, D.804 - "Rosamunde": 2. Andante
Piano Quintet in F minor, Op. 34: I. Allegro non troppo
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Piano Quintet in F minor, Op. 34: II. Andante, un poco adagio
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Piano Quintet in F minor, Op. 34: III. Scherzo (Allegro)
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Piano Quintet in F minor, Op. 34: IV. Finale (poco sostenuto - Allegro non troppo)
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Dvorak: String Quartet No. 12; Borodin: String Quartet No. 2
Haydn: 3 String Quartets Opp.3 No.5, 64 No.5 & 76 No.2
String Quartet in F Major, H.III No.17, Op.3 No.5 - "Serenade": 2. Andante cantabile
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Beethoven : String Quartet No. 10 (Mono Version)
Beethoven: String Quartets Nos. 10 & 13 (Remastered 2024)