Music

Music is an art form whose medium is sound and silence. Its common elements are pitch, rhythm, dynamics, and the sonic qualities of timbre and texture. The word derives from Greek μουσική. The creation, performance, significance, and even the definition of music vary according to culture and social context. Music ranges from strictly organized compositions, through improvisational music to aleatoric forms. 

Music can be divided into genres and subgenres, although the dividing lines and relationships between music genres are often subtle, sometimes open to individual interpretation, and occasionally controversial. Within "the arts", music may be classified as a performing art, a fine art, and auditory art. It may also be divided among "art music" and "folk music". There is also a strong connection between music and mathematics. Music may be played and heard live, may be part of a dramatic work or film, or may be recorded.