Theory

Robert Schumann

By Sir James Jeans

By Ernst Toch

By Wallace Berry

By Felix Salzer

By Alfred Mann

By Knud Jeppesen

By Philip Gossett

By Hector Berlioz / rev. Richard Strauss, ed. Theodore Front

Edited by Ellen Sander

By J. Murray Barbour

By Sheila M. Nelson

Ed. Frederick H. Martens

By Leopold Auer

By William Henry Hill, Arthur F. Hill, and Alfred Ebsworth Hill

By Edward Heron Allen

By Anthony Baines