The Small-Yang Duo – flutist Heather Small and pianist Hui-Ting Yang – will perform in Cadek Recital Hall at the University of Tennessee at Chattanooga on Saturday and in Ackerman Auditorium at Southern Adventist University in Collegedale on Monday. Small is a flute instructor at both universities. Yang is on the piano faculty at Troy University in Alabama. Their program will feature sonatas by Samuel Zyman and Walter Piston, as well as Three Bagatelles from China West by Chen Yi. The recitals start at 7:30 p.m., and admission is free to both.