Tonight at the Velvet Lounge. a rare opportunity to catch two artists active in the Beijing underground experimental music scene: P.K. 14 and Xiao He. Active since 1997, though with only one original member in the current lineup, P.K. 14 is one of the most influential bands in that scene and plays an energetic brand of post-punk. Xiao He is much more "out," with recordings showcasing surrealist folk, free electronic improv, and dadaist vocal experiments. More information about these artists can be found at Maybe Mars, with free recordings available for download.

Tonight's show is at 10pm, $10. Xiao He will also be performing a special show at Georgetown's Govinda Gallery on Saturday at 8pm. Free admission.

On Sunday, a virtual all-star cast of free improv musicians hits Bossa in Adams Morgan for an event in which two silent films, Order From Chaos and Shades of Jazz in Noir, will be screened and accompanied by a live improvised score. The mighty lineup includes Herb Robertson, Oscar Noriega, Vattel Cherry, Hans Koch, Jack Wright, and locals Ed Ricart and Sam Lohman. Ricart—pictured above playing with Matta Gawa in Baltimore—helps curate the Bossa events and promises that this will be something special. Starts at 8pm, $8.