If you’ve blown out your hearing like I have at nearly 30 years’ worth of rock shows, you may find yourself being more choosey when you go out. Some call it jaded, but it’s more like saving your hearing for the unexpected. When every band sounds like a hundred others, it’s truly exciting to hear something different. Olivia Neutron-John is most certainly that — a visceral, one-woman keyboard project of Washington’s Anna Nasty. Richmonders may recognize her as the bassist from Chain and the Gang. Wearing a wool jumpsuit, Nasty goes at her keyboard like a rabid shaman, wailing atop the throbbing intensity of her head-trip dance music, occasionally adding frenetic saxophone and tai chi moves to stripped-down, Casio beats. Washingtonian Ian Svenonious labels her music a “nonbinary, post-bro, one-person music/dance declaration of war on the accepted and the expected.” Whatever it is, it’s hard to take your eyes off her. She performs at Black Iris with Philly’s all-female psychorockers, Louie Louie on Wednesday, Aug. 26, from 8-11 p.m. 321westbroad.com.