Britain's Sian Alice Group follow in the hallowed tradition of Spacemen 3 and Spiritualized's elevation-through-downer-chord-progressions approach to music making. On albums like last year's 59.59 and the new Troubled, Shaken, Etc., the band's subdued siren, Sian Ahern, emotes at an even keel with solemn, diaphanous white-girl soul. Sian Alice Group err on the eerie side of psych-rock songcraft, sometimes drifting into orchestral beauty, other times dispersing into interstellar abstraction, and yet other times evoking Mike Oldfield's Tubular Bells. (Sunset Tavern, 5433 Ballard Ave NW, 784-4880. 10 pm, $8, 21+.)