The six string quartets, K. 155–160, were composed by Wolfgang Amadeus Mozart in late 1772 and early 1773. Because they were composed in Milan while he was working on his opera Lucio Silla, they are popularly known as the Milanese Quartets. Before this set was composed, Mozart had written one earlier string quartet (K. 80/73f in 1770), so these six quartets are ordinally numbered from No. 2 to No. 7. The quartets are written in a plan of keys of D-G-C-F-B♭-E♭ following the circle of fifths.

Date of composition 1773 (1772-1773)
Type String Quartet
Tonality C Major
Catalogue KV 157
Instruments Viola
Cello
2x Violin
Links
Autotranslations beta Wolfgang Amadeus Mozart: Quatuor à cordes n°4 en do majeur, KV 157 "Milanese Quartet"
Wolfgang Amadeus Mozart: Quartetto d'archi n. 4 in do maggiore, KV 157 "Milanese Quartet"
Wolfgang Amadeus Mozart: Streichquartett Nr. 4 C-dur, KV 157 "Milanese Quartet"