Brontez brought new energy to the “L@te: Friday Nights at BAM/PFA” series on Fri/11. The evening began with DJing by Myles Cooper, then an all-too-brief ear-scouring set by Brilliant Colors that left the audience asking for an encore. Next, people crawled over Thom Faulders’ orange BAMscape sculpture to see a series of short dance films by Gary Gregerson that was one of the evening’s highlights: the sound boomed from the speakers and the stark-black-and-white imagery popped from the screen, a lively marriage between Brontez’s spirited choreography and Gregerson’s affectionate knowledge of vintage TV dance shows. The centerpiece of the program, curated by Betty Nguyen, was a live performance by the Brontez Purnell Dance Company that, at its best, met raging two-piece rock accompaniment with spine-chilling results. After an improv dance class, the evening drew to a close with some music by Adeptus.