Professor Duffield has been an active performer and educator throughout Iowa and much of the Midwest. A graduate of the University of Iowa, where he earned a bachelor's degree in percussion performance and education, he has been a student of percussion educators such as Dan Moore, Michael Spiro, Dave Samuels, Dick Sisto, Jim Dreier, Liam Teague and Los Muñequitos de Motanzas.

An active member of the Vic Firth Education Team, Professor Duffield has taught numerous clinics, classes and private lessons for students of all levels. He has acted as a designer, arranger and educator for the Americanos Drum and Bugle Corps of Menasha, Wisconsin, and for the Kilties Senior Drum and Bugle Corps of Racine, Wisconsin. His experience includes arranging for several high schools, drum corps and college ensembles. Currently, he is working on a Master of Music Performance degree at the University of South Dakota, as well as performing and recording throughout Iowa.