Formed in 1988, Indiana's Impossible Shapes have kept a profoundly articulate sense of classic song/dream structure whether they're billowing in drenched multi-tracked gauze like Indianapolis forefathers Zerfas, or snarled in amp-buzz annihilation of power-quartet stage performances. On the flip, Barth (guitarist/vocalist) can pixie dance from guitar play/vocal slay in a quaint yet sexually sly role of piper against Deer's (organ, bass) counterpoint-heavy arrangements of tape-spliced fuckery. Easily the rawest tapes of the Shapes' canon, "Tum" is a potent album.