 Drummer Danny Gottlieb was replaced by Paul Wertico, and the Group was joined by multi-instrumentalist Pedro Aznar, who had already established himself with the band Serú Girán in his native Argentina.On "First Circle", the Group used instruments it hadn't recorded with before, including the sitar ("Yolanda, You Learn"), trumpet ("Forward March"), and agogo bells ("Tell It All").The first song, "Forward March", with Lyle Mays on trumpet, uses dissonant, out-of-tune chords and shifting time signatures.