Sergei Prokofiev's String Quartet No. 1 in B minor, Op. 50 (1931) was commissioned by the Library of Congress. The Quartet was first performed in Washington, D. C. on 25 April 1931 by the Brosa Quartet and in Moscow on 9 October 1931 by the Roth Quartet. The string quartet is in three movements, lasting around 20–25 minutes.

Date of composition 1931
Premiered 1931, April 25th in Washington, DC, United States
Type Quartet
Tonality B Minor
Catalogue Op. 50
Approx. duration 25 minutes
Instruments String Quartet
Autotranslations beta Sergueï Prokofiev: String Quartet n°1 en si mineur, Op. 50
Sergej Sergeevič Prokof'ev: String Quartet n. 1 in si minore, Op. 50
Sergei Sergejewitsch Prokofjew: String Quartet Nr. 1 h-moll, Op. 50