Ballard's Resolution Audio looks a bit like a furniture showroom, all quiet and woody and carpety. Upstairs, on a little platform off to one side, a half-dozen well-packed shelves hold the inventory of Dissonant Plane, Seattle's premiere niche-music boutique since its opening last December. Perhaps it's not apparent what contemporary classical music and doom metal have in common; proprietor Eric Lanzillotta?curator, really?appreciates their shared non-mainstreamness, along with Ennio Morricone, Eyvind Kang, and more Indonesian pop/rock on cassette, it seems safe to assume, than anywhere else in town. They're also happy to stock CDs by local artists on consignment. If you need Morton Feldman's six-hour, seven-minute String Quartet No. 2 (on five CDs) or a DVD titled Meat Shop Rapist ("50 minutes of heavy noise by Richard Ramirez"), they're here. Mini-reviews printed on slips of paper inserted under the CDs' plastic wrap help steer you through the maze of sonic oddity, and the live performances DP hosts constitute one of Seattle's more active avant-music series.?Gavin Borchert