This document discusses musical genres and how music is classified. It defines genre as a category of music that shares common characteristics, such as purpose. The main genres discussed are vocal music, which uses the human voice; instrumental music, which is played only with instruments; and music that combines both vocal and instrumental elements. Religious music is further divided into liturgical music, composed for religious ceremonies, and non-liturgical religious music. Other genres mentioned include folk, popular, light, functional, cinematographic, and theater music.