In music, Op. 28 stands for Opus number 28. Compositions that are assigned this number include: * Beethoven – Piano Sonata No. 15 * Britten – A Ceremony of Carols * Chopin – Preludes, Op. 28 * Danzi – Horn Sonata No. 1 * Elgar – Organ Sonata * Enescu – Impressions d'enfance * Ginastera – Piano Concerto No. 1 * Holbrooke – Horn Trio * Holst – First Suite in E-flat for Military Band * Korngold – Die Kathrin * Myaskovsky – Symphony No. 9 * Prokofiev – Piano Sonata No. 3 * Rachmaninoff – Piano Sonata No. 1 * Ries – Piano Trio, Op. 28 * Saint-Saëns – Introduction and Rondo Capriccioso * Schmitt – Reflets d'Allemagne * Schumann – Three Romances for piano * Scriabin – Fantaisie in B minor * Strauss – Till Eulenspiegel's Merry Pranks * Szymanowski – Nocturne and Tarantella * V