In his teens, he acquired a taste for percussion-based avant-garde composers such as Edgard Varèse and 1950s rhythm and blues music. He began writing classical music in high school, while at the same time playing drums in rhythm and blues bands—he later switched to electric guitar. He was a self-taught composer and performer, and his diverse musical influences led him to create music that was often impossible to categorize. His 1966 debut album with the Mothers of Invention, Freak Out!, combined songs in conventional rock and roll format with collective improvisations and studio-generated sound collages. His later albums shared this eclectic and experimental approach, irrespective of whether the fundamental format was one of rock, jazz or classical. He wrote the lyrics to all his songs, which—often humorously—reflected his iconoclastic view of established social and political processes, structures and movements. He was a strident critic of mainstream education and organized religion, and a forthright and passionate advocate for freedom of speech and the abolition of censorship.
"Billy the Mountain" is a Frank Zappa song, first made available on the album Just Another Band from L.A. in 1972. The original recording of this song, which took a complete half-hour to perform, was from a live tour performance on August 7, 1971 in Los Angeles during the Flo & Eddie days of Frank Zappa's band. The album recording had to be reduced to 24 minutes and 47 seconds in order to fit on one side. An alternate recording of the song was featured on the 1992 album Playground Psychotics.
Fillmore East LIVE was a live concept-like album. It was a quick peek behind the curtain of the life of a rock band on the road as narrated by Frank Zappa, and contains many thematic elements that, because of time and budget constraints, couldn't be included on the similar movie 200 Motels. The most famous part of the album is "The Mud Shark", a telling of a story told to Mother Don Preston by some members of Vanilla Fudge about a hotel, Seattle's Edgewater Inn, where guests could fish from their rooms.