Make no mistake: Ultra Dolphins is a power trio. And not in the Jimi Hendrix Experience sense, with a virtuoso backed by a great rhythm section, nor in the Rush sense, with three excellent players proving just how excellent they are. The three Virginians in Ultra Dolphins are all great musicians-you could follow just bass, guitar or drum lines and hear something creative happening-but the power of the band comes from the way the instruments fit perfectly together in a sort of post-hardcore layer cake, usually converging on a truly nasty, feedback-laden groove. At just over half an hour in length, Mar doesn’t contain enough music to qualify as a noise-rock masterpiece on par with Drive Like Jehu’s Yank Crime. But Ultra Dolphins have been steadily progressing since the Why Are You Laugh? EP from early 2006, adding in some mood-tweaking piano parts to “The Great Neurasthenic” and “One, Two, Three, Four” and compacting even more time changes into the winding song structures. Guitarist/vocalist Nate Rappole still screams his ass off, and the production is raw and sludgy, the only way to record this kind of stuff. I’ve been waiting four years for an Ultra Dolphins full-length. Let’s hope the next one doesn’t take so damn long.