The concept behind Mushroom, a band that dabbles in space rock, Delta blues, Krautrock, and jam band-ism, is one of freedom -- never make the same album twice and try to do something different every time you get on-stage. Mushroom are known for known for an ever-changing lineup of players and a great deal of improvisation in their live shows and recordings, and their revolving door of personnel and willingness to experiment have led to guest appearances by many of their influences, including Gong's Daevid Allen, Soft Machine's Kevin Ayers, and Cream lyricist Peter Brown, and t...