In music, Op. 13 stands for Opus number 13. Compositions that are assigned this number include: * Bartók – The Wooden Prince * Beethoven – Piano Sonata No. 8 * Britten – Piano Concerto * Dvořák – Symphony No. 4 * Enescu – Symphony No. 1 * Fauré – Violin Sonata No. 1 * Glazunov – Stenka Razin * Kodály – Psalmus Hungaricus * Mendelssohn – String Quartet No. 2 * Nielsen – String Quartet No. 1 * Rachmaninoff – Symphony No. 1 * Schumann – Symphonic Studies * Tchaikovsky – Symphony No. 1 This disambiguation page lists compositions catalogued to the same opus number. If an internal link led you here, you may wish to change the link to point directly to the intended article.