music. Music consists of sound heard over time. It can be used to evoke emotion or thought in the listener. Music is often described as an art form that involves organized sounds and silence. It is considered by some cultures to be a language in and of itself. Music is also used as an accompaniment to dance, as a part of some religious rituals and a means to communicate with spirits. Within the arts, music can be classified as a performing art, a fine art, and an auditory art form though the definitions of music vary according to culture and social context.