Important genres from Open Opus titles and subtitles, ordered by how many works are marked popular.
Symphonies, suites, serenades, and divertimenti.
Concertos, including concerti grossi and sinfonie concertanti.
Operas, ballets, and overtures.
Trios, quartets, quintets, and sextets.
Nocturnes, etudes, preludes, fugues, toccatas, partitas, fantasias, and variations.
Sonatas, other than trios.
Requiems, masses, oratorios, motets, and cantatas.
Song cycles, Lieder, and collections titled Songs.