IG2 (Guy Joseph Music)
Interstellar Grains sound like what you’d get if you gene-spliced a classic drone rock outfit with a group of jazz improvisationists, then added a ’70s funk band. IG2 has a loose, free flowing feel. It shifts from one mood to another smoothly, but the overall sense of improvisation and experimentation remains. Clever, sophisticated stuff.
At Café Du Nord (2170 Market St., San Francisco) on July 30. 9:30 p.m., $10