Chicago Underground cornetist Rob Mazurek continues his extracurricular activities with the electro-acoustic trio Tigersmilk. While not as self-absorbed as Mazurek’s recent solo disc for Delmark, this eponymous recording for Family Vineyard comes close. Mazurek seems to be straining to get away from the more melodic style he brings to the Chicago Underground projects. When he isn’t otherwise occupied with pure electronic sound and severe electronic distortion, he sounds volatile and cranky, and even when his simpler, melodic side surfaces he splinters it with a stentorian, machine-gun cadence. Because of the splayed-open rhythm section of bassist Jason Roebke and drummer Dylan van der Schyff, Tigersmilk trades in small, isolated gestures-a lonely rim shot here, a dialtonelike buzz there-so much so that the music sounds marooned. There are some interesting ideas on Tigersmilk, but the band never really gets anything together until the final cut, the darkly sweet “Long, Past, Time,” but by then it’s, well, you get the picture.