At just after 3 p.m. on a Sunday, Vic Rawlings begins to "play a rhythm in the vibration of his body." He's only following directions, those of the late German composer Karlheinz Stockhausen, whose "Verbindung" ("Connection") gives that instruction. What does it mean? Rawlings interprets it as a low guttural scrape across the tailpiece of an amplified cello.
As four other players join in, the noise progresses to musical sounds and back again. For the next six hours, pianist/director Stephen Drury's Callithumpian Consort, along with its student cadres, [nec] shivaree, survey most of the rest of Stockhausen's "intuitive music." The frameworks for extemporaneous performance are paragons of the far-out, avant-garde 1960s, but their amorphous, sometimes transcendental tone - "play a vibration in the rhythm of the universe," as "Verbindung" directs - have resulted in a repertoire more often talked about than actually heard.