Professor Jonathan Ovalle plays his piece entitled “Two Pieces for Piano (I.Light)(II.Dark)”Vanguard Photogropher | Capri KlohaProfessor Jonathan Ovalle plays the Bongos during his rendition of “Dialectal Percussions (1994)” by Lei Liang. by John S. Pratt. Vanguard Photogropher | Capri KlohaProfessor Jonathan Ovalle plays the Field Drum during his rendition of “Drum Corps on Parade (1959)” by John S. Pratt Vanguard Photogropher. Capri Kloha | Vanguard Photogropher