One of the better British progressive bands of the early '70s, the Strawbs differed from their more successful compatriots – the Moody Blues, King Crimson, Pink Floyd – principally in that their sound originated in English folk music rather than rock. Founded in 1967 as a bluegrass-based trio called the Strawberry Hill Boys by singer/guitarist Dave Cousins, the group at that time consisted of Cousins, guitarist/singer Tony Hooper, and mandolinist Arthur Phillips, who was replaced in 1968 by Ron Chesterman on bass.