Friday night's free Scene Unseen party is billed as "Our favorite discoveries from your favorite scenes," which feels like a too-normal pitch for a genre-mashing late night shindig offering everything from Berlin-style ping pong to the SF debut of one of the moment's weirdest rappers. With a whole bunch of electronica and hip hop on deck, that the evening is free with an RSVP on Do415 seems almost criminal. On the local front, you've got Ghosts on Tape's dark house and Elephant & Castle's textured electronic pop, alongside hosts Trill Team 6 and a long list of notable local DJs. [...]