A working bluesman since his teenage years in the early 1950s, Johnny "Guitar" Watson scored numerous chart successes in the 1970s with a unique guitar-based sound that mixed the feel and instrumental technique of the blues with the bass-heavy sound of funk. Admired by guitarists specializing in various styles of music, and recruited as a sideman by the avant-garde rock musician Frank Zappa, Watson also excelled as a vocalist. His singing was by turns sexy, humorous, and political; his guitar playing exploited the full range of the instrument's powers