The title for J.C. Combs’ simple piano piece references the beading rhythmic experiments of famed minimalist composer Steve Reich. But it arguably has as much Gershwin in it as it does Reich. “Phase Study for Paul Muller” manages a small amount of swagger, a fair measure of swing. The driving pulse of the music has the busy urban nightscape quality of Reich’s early works in this manner, where musical lines of close derivation create sonic moiré patterns. Perhaps its the compact length, at barely three minutes, but Combs’ seems bustling and jaunty, rather than hallucinogenic and geometric.