R Ryan Endris R. Ryan Endris, D. Mus, currently serves as Assistant Professor of Music and Director of Choral Activities at Colgate University. He is also in demand as an arranger of choral and instrumental music throughout the country, and his arrangemnts have been heard by audiences around the world. He is also the author of The History of Classical Music For Beginners. Visit him at www.ryanendris.com. Read More Read Less