Bark is the sixth studio album by Jefferson Airplane. Released in 1971 as Grunt FTR-1001, the album is one of the Airplane's late-period works, notable for the group's first personnel changes since 1966. The album was the first without band founder Marty Balin (who departed the band during the recording process but without featuring in the sessions) and the first with violinist Papa John Creach. Drummer Spencer Dryden had been replaced by Joey Covington in early 1970 after a lengthy transitional period in which both musicians had performed with the band.