Germany's Guru Guru, formed in 1968 by drummer and vocalist Mani Neumeier and bassist Uli Trepte, gave new meaning to the concept of the "power trio." Originally from the university town of Heidelberg, the band shuffled through guitarists before moving to Berlin. There they added guitarist Ax Genrich, previously in an early lineup of Agitation Free, and proceeded to take the guitar-bass-drum formula and turn the combination on its head. Loud, intrepid and thoroughly soaked in psychedelia, Guru Guru created krautrock of the highest order.