It may not be the first go-round for the Karmetik Machine Orchestra, but the automated musicians, fashioned by a group of students at the California Institute of the Arts, took the stage last night to prove that robots can rock. Among the mechanized musicians scheduled to perform at the Walt Disney Modular Theater were MahaDevibot, Glockenbot, BreakBot, and NotomotoN, described as a "duel-head drum with twelve beaters and a mallet orchestra." Each of the robots was built from salvaged parts and progra