ART: A garden party with projected multimedia art sounds like a lovely idea. SOMArts Cultural Center presents Night Light: Multimedia Garden Party, featuring abstract sound, video, and site-specific film installations "spilling through the bamboo grove and on monitors sprinkled throughout the driveway."

9 p.m. to 1 a.m. // SOMArts (934 Brannan St) // $5-10 donation, buy tickets

CLUB: The U.K.'s Plump DJs will be performing a two-hour set, presented by Seismic SF, along with a few other Seismic DJs. Fugaziaboutit says, "people are still talking about their crazy naked drunk set at Coachella 2009." Download a free mix here.

10 p.m. // Mezzanine (444 Jessie St) // $20-25, buy tickets

EROTIC: Good Vibrations and Club Kiss present An Open Invitation: A Real Swingers Party in San Francisco, which includes a cocktail reception and panel presentation about the changing dynamics of modern relationships and how a new generation of women in adult film is influencing the industry. The panel will be followed by a feature-length film by and Private Media film.

7 to 9 p.m. // Mission Control (2519 Mission St) // free