O, the little hole in the wall that is JR’s! Is this what we really have to call a music venue in South Philly!?! But in its defense, it has been doing a good job at bringing in some of our beloved local up-and-coming artists. Tonight you have the comforting tunes of Lux Perpetua (a.k.a. Justin Wolf), but expect his songs to get some extra sonic juice with Phil Pardell and Matt Gibson (The Extraordinaires) filling spaces in already cramped quarters. Badmaster’s My Mind will also be assaulting the senses as they use their spastic compositions to leave an eternal buzz in your head. JR’s, 2327 S. Croskey St., 9pm, $5, 21+ – H.M. Kauffman