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The American Musicological Society regrets to announce that Dr. William Peter Mahrt passed away on 1 January 2025.

Dr. Mahrt was known for his expertise in Gregorian chant, medieval performance, and the works of composers such as Machaut, Dufay, Isaac, and Lassus. He held teaching positions at Case Western Reserve University, the Eastman School of Music, and Stanford University, and served as the President of the Church Music Association of America. We invite to read more about the life and works of Dr. Mahrt on St. Patrick Seminary’s website.