Jazz Variety is a term used to describe the various styles of jazz music. SCAT, BOP, and BEBOP are three of the most popular varieties of jazz. SCAT is a vocal improvisation style that uses nonsense syllables instead of words. BOP is a fast-paced style of jazz that originated in the 1940s. BEBOP is a style of jazz characterized by complex harmonic structures and fast tempos. All three of these jazz varieties have been influential in the development of modern jazz music.