Featuring Betamen of Judea, Sonic Disturbance, Foreign Steel, Johnny La Rock & Mush Mouth, and Subroc. 8 p.m., Wednesday, December 29. Pat's in the Flats, W. 3rd St. and Literary Rd., Tremont, 216-621-8044.
2100 Superior Viaduct, Suite 520
216-556-8200. 5 to 10 p.m. Monday
The artists at Johnny La Rock's monthly Experimental Nights don't experiment with music -- they weaponize it, improvising and adapting like true guerrillas. This month's show features live techno from Sonic Disturbance, on-the-fly hip-hop and electronica from La Rock and Mush Mouth, and the incomparable work of Subroc, who makes music using old video-game consoles. And though it seems impossible to top "Theme From Super Mario Brothers," hey, someone's gotta try.