These legendary tracks were the demos recorded for the Priest Driven Ambulance album, with the classic band line-up featuring Jonathan Donahue from Mercury Rev on guitar. Originally recorded by Donahue and remastered by Dave Fridmann and the Flaming Lips, they give a great insight into the creative process of the band. This is the first time The Mushroom Tapes have been available as a stand-alone release and first ever time these tracks have been available on vinyl.