The Dixie Dregs came back, maybe (as the joy each member showed during the show, both contagious and unforced) to gather again for a round of new material, and rattled the venerable walls of the Wilbur Theatre with a rousing set of what have now become industry standards, bringing back the fever their old shows would mount up with The Bash and Cruise Control. Anyway, it made this old fan very happy to see all these old farts perform with their usual incredible skill and dexterity and energy. Morse's complex and inviting musics have entranced two generations of listeners now, as well as giving musicians high goals to equal. They played a nice mix of selections from their history, and we got a small thrill from Slonov when he played a solo composition he dedicated to his daughter, giving us a brief glimpse into their lives between gigs. They all played at a relentless clip, but then again, that's the way it's always been. I'm really hoping the joy and depth of this show will entice them all to gather in a studio again, if not enlarge the tour, as Morse (and West and Sloan et al.) have compositional chops as well as technical prowess. Once again, they prove that instrumental music has more emotive and intellectual energy than any repetitive vocal song, and that there's pure poetry in tones.