Lace up those dancin’ shoes extra tight because tonight at Underground Arts you’ve got a double dose of electro outfits ready to fill your head with some space-age sounds. Philly’s own keyboard army Instamatic will be reproducing all of its synthetic sonic delights on stage – not selling the audience short by simply just pushing a play button, but delivering the group’s electronic assault via their masterful orchestration of synthesizers and sequencers. As a special treat, headlining the eveing is Bristol, England’s Beak> with its experimental whirrs. Beak> houses Portishead’s Geoff Barrow and his shape-shifting acid-rock experimentations. Underground Arts, 1200 Callowhill St., 9pm, $15, 21+ – Brandi Lukas