On ' first two albums, (1969) and (1970), the quintet was mostly searching for a sound on which they could build, losing one of their original members -- guitarist -- in the process. Their third time out proved the charm -- constituted a de facto second debut, introducing the sound that would carry them forward across the next decade or more. Gone are any covers of outside material, the group now working off of its own music from the ground up. A lot of the new material was actually simpler -- in linear structure, at least -- than some of what had appeared on their previous albums, but the internal dynamics of their playing had also altered radically, and much of the empty space that had been present in their earlier recordings was also filled up here -- suddenly, between new member 's odd mix of country- and folk-based progressive guitar and the suddenly liberated bass work and drumming of and , respectively, the group's music became extremely busy. 's soaring vocals and the accompanying harmonies were attached to haunting melodies drawn from folk tunes as often as rock, applied to words seemingly derived from science fiction, and all delivered with the bravura of an operatic performance. What's more, despite the busy-ness of their new sound, the group wasn't afraid to prove that less could sometimes be more: three of the high points were the acoustic-driven (a superb showcase for on solo acoustic guitar), and the relatively low-key ." did what it had to do, outselling the group's first two long-players and making the group an established presence in America where, for the first time, they began getting regular exposure on FM radio. ~ Bruce Eder