Op. 20
# Op. 20

In music, Op. 20 stands for Opus number 20. Compositions that are assigned this number include:

* Barber – Excursions
* Bartók – Eight Improvisations on Hungarian Peasant Songs
* Beethoven – Septet
* Britten – Sinfonia da Requiem
* Chausson – Symphony in B-flat
* Chopin – Scherzo No. 1
* Dvořák – Moravian Duets
* Elgar – Serenade for Strings
* Haydn – String Quartets, Op. 20
* Hindemith – Das Nusch-Nuschi
* Knussen – Where the Wild Things Are
* Korngold – Das Wunder der Heliane
* Matthay – Piano Quartet
* Mendelssohn – Octet
* Prokofiev – Scythian Suite
* Rachmaninoff – Spring
* Ries – Cello Sonata No. 2
* Sarasate – Zigeunerweisen
* Schoenberg – Herzgewächse
* Schumann – Humoreske
* Scriabin – Piano Concerto
* Shostakovich – Symphony No. 3
* Strauss – Don Juan
* Tchaikovsky – Swan Lake
* Zemlinsky – Symphonische Gesänge
