In music, Op. 57 stands for Opus number 57. Compositions that are assigned this number include:
Beethoven – Piano Sonata No. 23 Chopin – Berceuse Dvořák – Violin Sonata Fauré – Shylock Glazunov – Raymonda Medtner – Violin Sonata No. 3 Nielsen – Clarinet Concerto Prokofiev – Symphonic Song Reicha – L'art de varier Schumann – Belsatzar, ballad (Heine) Shostakovich – Piano Quintet