Allegaeon have debuted their new track, “Gray Matter Mechanics – Appassionata Ex Machinea“, their first recording to feature their latest frontman Riley McShane (Son Of Aurelius). Below you can stream/purchase the song, as well as find an acoustic performance of “Appassionata Ex Machinea” by guitarist Greg Burgress. The band recorded their new album with producer Dave Otero (Cattle Decapitation, Cephalic Carnage)