Listening to Junior, it’s apparent that if Kaki King hates her ex this much now, she really must have loved her then. The instrumental virtuoso claims a backing band on her fifth album, and the new rhythm section adds aggression to tangles of guitar and post-domestic disgust. While she’s gone from acoustic shredder to Dave Grohl’s personal demigod in the course of a decade, King sounds wholly at home commanding an indie-rock power trio. Junior could be just the thing for still-mourning Sleater-Kinney fans or anyone who likes their licks righteous and their indignation more so.