Chicago music bomb Volcano! is the first rock band signed to the Leaf label, which typically releases electronic experimentation. This record, containing a Leaf label-worthy amount of electronic noise, is discombobulating at first (i.e., any sound that is irritating in real life is probably irritating as “music;” see rattling tin cans), but mixes ebullient, freestyle rock with it, which ends up sounding sort of like a Macha or Mogwai explosion. This is the type of music that requires close examination to truly appreciate, but unlike, say, opera, it's actually good (and will offend the schmucks that like opera).