Leonard's music style can be categorized as jazz fusion. Jazz fusion is a music genre that blends elements of jazz and rock music. It emerged in the late 1960s, and some of its notable influences include Miles Davis, Herbie Hancock, and Wayne Shorter. Jazz fusion often emphasizes improvisation, odd time signatures, and the use of electronic instruments. Leonard's use of synthesizers, electric guitar, and other electronic instruments, combined with his innovative approach to rhythm and harmony, set him apart as a leading figure in the jazz fusion scene.