This two-CD collection is a companion volume to (2004) and contains the (1970), (1971), (1971) and (1972) LPs and associated extras. The initial aggregate was a supergroup of sorts, with both (drums) and (bass) having been the formidable rhythm section behind , (vocals) hailing from , and (guitar) late of 's backing ensemble . Even though was overshadowed by , they created their own -based , rivalling the likes of in terms of sheer sonic intensity. While their debut included fiery reworkings of 's and some of the best material consists of the band's compositions. Among them are the the heavy rocker and the languid bluesy (2004) also highlights three outtakes from the first album, an original thrasher titled as well as The latter originally surfaced on the single-disc (1996) compilation. The follow-up (1971) sported a cohesive and less raw sound, benefiting no doubt from the help of noted engineer . However, and the propulsive are evidence that remained loud, raucous and driven. The Chicago-style is offered here as the sole leftover circa . The personnel shifted after their next long-player (1971) as former frontman (lead vocals), (guitar) and (keyboards) replaced -- who split at the conclusion of the tour. Incidentally, the final performance by the earliest incarnation can be heard on . By the time of the half-studio/half-concert (1972), much of the magic had significantly dissipated resulting in an uneven affair. Although -- a blatant rip-off of ' -- is a hard groove that soars thanks to impressive contributions. ~ Lindsay Planer