A spike-haired, highbrow, performance-art superwoman who can pack an entire piece of theater into a single song: Laurie Anderson. A consummate jazz bassist and composer, visionary when it comes to jazz concepts that pull history and politics into the mix: Christian McBride. A boundary-busting cellist and a composer of sonic collage: Rubin Kodheli. What genre is this? You make the call. —L.J.