Samla Mammas Manna was a Swedish progressive rock band often characterized by virtuosic musicianship, circus references and silly humour, similar in many ways to the song-writing style of Frank Zappa. They were one of the founding members of the Rock in Opposition (RIO) movement in the late 1970s. In 1979 they were Fred Frith's backing band on his solo album, Gravity (1980). Musically, they bore a resemblance to the Canterbury scene.