Glass the Sky and A Sundae Drive have been steady and reassuring presences within Houston’s indie-rock community for most of the decade, and ASD for several years before that, too. The groups are so tight they’ve decided to have a joint release party for their new albums, and while the two don’t often step on each other’s toes aesthetically, both number among the more cerebral groups in their chosen genre — either in Houston or anywhere else. The deluxe-length songs on ASD’s Versailles dip their toes into the warm waters of slowcore and shoegaze, but often develop toward the thrilling climaxes of Explosions In the Sky (with vocals, though). Glass the Sky’s LP1, which follows up 2014’s EP, isn’t quite as bound to the shadows, balancing plaintive melodies with exalted guitar work, but the effect is similarly satisfying. Houston’s leading post-punk agitators, the Wheel Workers, and College Station kitchen-sinkers the Ex-Optimists round out what should be a stellar evening.