Musicians from the National Forum of Greek Orthodox Church Musicians and the Federation of Greek Orthodox Church Musicians Chicago Metropolis gathered at Assumption Church in Madison, WI over the weekend of October 15th and 16th to celebrate the memory of composer and director Michael B. Petrovich on the occasion of what would have been his 100th birthday. Musicians from the National Forum of Greek Orthodox Church Musicians and the Federation of Greek Orthodox Church Musicians Chicago Metropolis gathered at Assumption Church in Madison, WI over the.