Elisabeth Pridonoff (standing) makes a point with Jane Sycks during a piano master class Jan. 27 in Bluffton University's Yoder Recital Hall. Pridonoff and her husband, Eugene, comprise the Pridonoff Duo, who conducted the master class for about 40 piano students and teachers the morning after presenting a concert in the university's Artist Series. In addition to performing internationally, the Pridonoffs are professors of piano at the University of Cincinnati College-Conservatory of Music.