On Wednesday February 22nd, 2017 Sound / Simulacra featured Graham O’Brien at Jazz Central Studios. This was only the second event in the series and somehow these recordings captured by Dave Kunath slipped through the cracks. Fortunately I came across them recently so I can share them now. This concert was shortly before Graham and I performed for Merce Cunningham: Common Time at the Walker Art Center. During this period we were trying a lot of things with aleatoric techniques. This included graphic scores with chance elements, randomized digital sounds that Graham triggered from his acoustic drums, and randomized sound design I was triggering from the PreenFM2.