The Frequency Festival connects a far-flung constellation of sounds

Chicago Reader: Since its inception in 2013, the Frequency Series has been hosted by north-side performance space Constellation, usually on Sunday nights. Founded and programmed by former Reader staff critic Peter Margasak, the series devotes the bulk of its programming to new classical music, but it also purports to illuminate links between new classical, free improvisation, noise, and other boundary-pushing disciplines—with the goal of bringing their audiences together.