The Quartettsatz in C-moll (English: Quartet Movement in C minor), D 703 was composed by Franz Schubert in December 1820. It is the first movement of a string quartet that Schubert never completed. It was listed as his String Quartet no. 12 on publication. In addition to the opening movement, Schubert also composed the first 40 bars of a second movement marked "Andante." The unfinished quartet is regarded as one of the first products of Schubert's mature phase of composition.

Date of composition 1820
Type String Quartet
Tonality C Minor
Catalogue D 703
Approx. duration 10 minutes
Instruments Viola
Cello
2x Violin
Autotranslations beta Franz Schubert: Quatuor à cordes n°12 en do mineur, D 703 "Quartettsatz (Quartet Movement)"
Franz Schubert: Quartetto d'archi n. 12 in do minore, D 703 "Quartettsatz (Quartet Movement)"
Franz Schubert: Streichquartett Nr. 12 c-moll, D 703 "Quartettsatz (Quartet Movement)"