Op. 23

In music, Op. 23 stands for Opus number 23. Compositions that are assigned this number include:


 * Barber – Medea
 * Beethoven – Violin Sonata No. 4
 * Chopin – Ballade No. 1
 * Dvořák – Piano Quartet No. 1
 * Franck – Prélude, Aria et Final
 * Gál – Das Lied der Nacht
 * Grieg – Morning Mood
 * Grieg – Peer Gynt
 * Kabalevsky – Piano Concerto No. 2
 * MacDowell – Piano Concerto No. 2
 * Medea – Medea's Dance of Vengeance
 * Myaskovsky – Symphony No. 6
 * Rachmaninoff – Preludes, Op. 23
 * Sarasate's Spanish Dances, Book III
 * Schumann – Nachtstücke
 * Scriabin – Piano Sonata No. 3
 * Sibelius – Songs for Mixed Chorus from the 1897 Promotional Cantata, song cycle for soloists and mixed choir (arranged 1898)
 * Strauss – Macbeth
 * Tchaikovsky – Piano Concerto No. 1
 * Widor – Surrexit a mortuis
 * Wirén – Violin Concerto, for violin and orchestra (1946)