Composed of bass player Bob Skeat, guitarist Mark Abrahams, drummer Mike Trescott, and guitarist Andy Powell, the latter of whom began recording with the group more than 50 years ago, a legendary rock outfit plays Davenport's Redstone Room in the venue's November 26 concert with Wishbone Ash, the band's "Wish List Tour" boasting the trademark twin-guitar sound and mix of heavy-guitar edge and prog-rock adventurousness that made the outfit one of the definitive British hard rock bands of the 1970s.