On July 23 and 24, Ensemble Musikfabrik (a contemporary music group from Cologne) performed Harry Partch’s final large-scale theater work, Delusion of the Fury as part of the 2015 Lincoln Center Festival. Since the work’s premiere in 1969 there have been only a handful of performances. This one is important to note because it’s the first performance in the United States featuring the near-complete replica set of Partch Instruments built by Thomas Meixner in 2012. The New York City performances were based upon the 2013 performance directed by Heiner Goebbels and produced by Ruhrtriennale, and although some aspects of the staging and costumes seemed arbitrary and distracting, the performance was executed with amazing musicality, impeccable precision, and the ensemble allowed Delusion to exert itself as a great work of art. Most importantly, the performance raises interesting questions about the legacy of Harry Partch now that more than one unique set of his instruments exists.