SHADES OF A BLUE ORPA compilation of early material. Thin Lizzy: Phil Lynott (vocals, bass), Eric Bell (guitar), Brian Downey (drums). Additional personnel: Clodagh Simonds (harpsichord, Mellotron). A fascinating, all over the map album by a band that hadn't yet found its own voice (although in retrospect, hints of the band's ultimate direction can be heard here). Things get off to a roaring start with "The Rise and Dear Demise of the Funky Nomadic Tribes," which segues