• Aaron Dilloway, Modern Jester

Enemy, the invaluable experimental music venue run by Jason Soliday, closed its doors in July, but it didn’t take too long for a new operation to pop in the same space. The multiarts venue Tritriangle quietly opened up last October, but although its schedule has been sparse thus far—it held one of the concerts presented as part of December’s Gli.tc/h fest—it holds great promise, some of which arrives Saturday. Still, Soliday can’t seem to shake the concert-presenting itch, and under the name Post-Enemy Sound he’s presenting a strong four-act bill headlined by former Wolf Eyes troublemaker Aaron Dilloway, with opening slots by the Chicago trio Green Pasture Happiness, Exhumed Corpse, a harrowing ambient project of Detroit’s Sam Wagner, and himself with St. Louis bassist Darin Gray.