Emma Lou Diemer was born in Kansas City, Missouri in 1927. Diemer played the piano and composed at a very early age and became organist in her church at age 13. Her great interest in composing music continued through College High School in Warrensburg, MO, and she majored in composition at the Yale Music School (BM, 1949; MM, 1950) and at the Eastman School of Music (Ph.D, 1960). She studied in Brussels, Belgium on a Fulbright Scholarship and spent two summers of composition study at the Berkshire Music Center. She taught in several colleges and was organist at several churches in the Kansas City area during the 1950s. From 1959-61 she was composer-in-residence in the Arlington, VA schools under the Ford Foundation Young Composers Project, and composed many choral and instrumental works for the schools, a number of which are still in publication. She was consultant for the MENC Contemporary Music Project before joining the faculty of the University of Maryland where she taught composition and theory from 1965-70. In 1971 she moved from the East Coast to teach composition and theory at the University of California, Santa Barbara. At UCSB she was instrumental in founding the electronic/computer music program. In 1991 she became Professor Emeritus at UCSB. Through the years she has fulfilled many commissions (orchestral, chamber ensemble, keyboard, choral, vocal) from schools, churches, and professional organizations.

Carson Cooman is the chief editor of Zimbel Press, in which capacity he has worked with Emma Lou Diemer for over ten years. Cooman is an active composer himself, with a catalog of works in all forms. He currently serves as composer-in-residence for The Memorial Church at Harvard University. As an organist, he has specialized in the performance of contemporary music and has given world premieres of over 130 organ compositions written for him by composers from around the world.