Op. 9

In music, Op. 9 stands for Opus number 9. Compositions that are assigned this number include:


 * Adams – Chamber Symphony
 * Adès – Living Toys
 * Bartók – Four Dirges
 * Beethoven – String Trios, Op. 9
 * Chopin – Nocturnes, Op. 9
 * Dohnányi – Symphony No. 1
 * Kabalevsky – Piano Concerto No. 1
 * Larsson – The Princess of Cyprus (Prinsessan av Cypern), opera in four acts (1936)
 * Rachmaninoff – Trio élégiaque No. 2
 * Schumann – Carnaval
 * Sibelius – En saga, tone poem for orchestra (1892, revised 1902)
 * Sor – Introduction and Variations on a Theme by Mozart
 * Strauss – Seufzer-Galopp
 * Vivaldi – La cetra