My vote for 1997’s best local release so far goes to Let Them Eat…the Monorchid. The Simple Machines/Dischord co-release bristles with spiky dual-guitar riffs, herky-jerky drumming, and bass lines that sound as if they’re laid down with a meathook. The element unifying all the well-orchestrated dissonance is the hectoring shouting of frontman Chris Thomson, who, with the rest of the band, leaves virtually no room for melody. Know what? You don’t miss it, either. Appropriate opener Rye Coalition’s percussive new Gern Blandsten release, Hee Saw Dhuh Kaet, sports plenty of Fugazoid, Burmesque, and Shellacked exhortations that only occasionally lose out to their Made-Up or Perryfarrell (don’t blame me—he picked the pun) kin. With Impossible 5 at 8:30 p.m. at the Black Cat, 1831 14th St. NW. $5. (202) 667-7960. (Glenn Dixon)