Perhaps matching our dire political circumstances, Austin punk, metal, doom, and noise rock are having an exciting moment. Austin’s own Bad Acid is adept, if music this wonderfully dunderheaded can be called as much, at blending all four modes, especially the last two, into a pleasing, loud lava. With Calves, a little speedier but trafficking in the same sort of murk, and Swellin, whose goth-vocaled, garage-guitared EP Tsunami Backhand arrived in October. – Joe Gross