Philadelphia's Asteroid #4 make no attempt to hide their swirling, psychedelic tendencies: rainbow colored album covers tint their four somber-looking faces; the song title "Underbelly of a Mushroom"; the occasional use of sitar and tablas. Uncommonly original, their music spirals and hypnotizes as tape manipulations induce glazed eyes and effects often border just north of monotony. Asteroid #4 are consistently inventive enough in composition to keep their reverb and chord drones from crashing head-on into a 1960s-obsessed roadblock.