To most, a double live CD of Trey Anastasio's solo work might not seem like a good thing. But look past the hippie-aphorism lyrics, the multiculti percussion, and, yes, the excruciatingly long jams on Plasma, and you'll catch extended glimpses of a fantastically inventive guitar player. The Phish guy knows a thing or two about musical structure and pacing, too, so the mass of material gathered on ''Plasma'' flows engagingly -- and surprisingly quickly -- through its two-plus hours. Even if you're not high.

