The gloomy streets don't affect the cocoon of chicdom at oh-so-hip Butterfly, a sexy, 3,500-square-foot supper club that's aflutter with good times and an impressively multicultural mix of San Franciscans. The spacious, dim, brick-walled warehouse restaurant/bar manages to be all things to most all San Francisco people. To some, it's a good, albeit very noisy, bar (which overlooks the open dining room and jazz band that performs after the prime dining hour). To others it's a dining destination (equally noisy) where the eclectic mix of Asian-influenced foods range from edamame (soybeans), duck confit spring rolls, and Niman Ranch baby-back ribs to crispy fried whole fish with pepper, Chinese sausage chow fun, kimchi, and sweet-and-spicy black-bean sauce. To everyone, it's a place to hear live music -- like it or not, because the band plays loudly in hopes of being heard over the chatter of 30-something revelers. Call before heading here; they plan to move to Pier 33 before the end of 2003.