While only a little over a year and a half old, The Happen-ins have already alchemized a unique brand of rock and roll, thanks to their patchwork of members from groups like The Dedringers and Harlem Spiritual Orchestra. The best part? They’re set to open for The 13th Floor Elevators’ own Roky Erickson. Set for the Bell House in Brooklyn on Wednesday Nov. 10, this is one night you won’t want to miss.