"Marcos Valle" (1970) (often referred to as "The Bed Album" due to its cover shot of Valle in bed) contained his most adventurous as well as his most rock-influenced and psychedelic music up to that point.Backed by Milton Nascimento's band Som Imaginario, Valle explored a more eccentric approach, with a number of futuristic tracks and an extended instrumental suite not unlike the work of U.S. composer and producer David Axelrod.