Prof. Blachly joined Notre Dame’s faculty in 1993. He served as interim chair of the department from 2001-2002.

He is the author of articles on the German dialect of Gregorian chant, the difference between tapping time and conducting time visually in the fifteenth and sixteenth centuries, puzzle-pieces of the late Middle Ages, the evolution of musical notation in the thirteenth through sixteenth centuries, the performance of the music of Lassus and Palestrina, archaic polyphony of the Renaissance, and thoughts on the performance of twelfth-century Calixtinus music, among other topics.