Leon Dallin
Glen Leon Dallin Jr. was an American music theorist whose primary work was Techniques of Twentieth Century Composition: A Guide to the Materials of Modern Music.
Dallin was born in Utah. He received his bachelor's and master's degrees in music from Eastman [School of Music] and a Ph.D. from The [University of California, Berkeley]. He then was a professor at Brigham Young University from 1948-1955 and at California [State University, Long Beach] from 1955 to 1983.