The original group's debut album was a then-groundbreaking meld of progressive rock with classical and jazz influences. The album is a little clunky by today's standards, and far druggier than the later group in its ambience (cofounders Keith Relf and Jim McCarty were the heavily psychedelic half of the final lineup of the Yardbirds, which made them anathema to Jimmy Page), but vocalist Jane Relf had a striking individual style, and the classical influence was unique for its time.

(by Bruce Eder, All Music Guide)