Spurning all that cheating with software, Seattle’s effects-heavy four-piece Sushirobo starts with late ’70s art-punk aesthetics, layering modern pop/rock hooks, oddball tones and dub headiness. Frontman Arthur Roberts (ex-Posies) delivers esoteric lyrics in a voice that recalls Soul Coughing’s M. Doughty. Though nearly every song has an unconventional structure culled from jam-style recording sessions, the experiment works best when grounded by steady beats, catchy vocals and incidental effects, as with highlight “Talk Show.” At times it’s hard to see the rock show forest for the twisted trees, but Sushirobo gets credit for sticking to the fringe on its second full-length.