The group's third album showed a marked advancement, with a fuller, more cohesive sound from the band as a whole and major improvements in Jeff Lynne's singing and songwriting. This is where Electric Light Orchestra took on its familiar sound, Lynne's voice suddenly showing an attractive expressiveness reminiscent of John Lennon in his early solo years, and also sporting a convincing white British soulful quality that was utterly lacking earlier. The group also plugged the holes that made its work seem so close to being ragged on those earlier records. "Showdown" and "Ma-Ma-Ma Belle" (the latter featuring Marc Bolan on double lead guitar with Lynne) became AM radio fixtures while "Daybreaker" became a concert opener for the group and, along with "In the Hall of the Mountain King," kept the group's FM/art rock credentials in order.