Glenn is a published choral composer with a number of major firms, including Augsburg-Fortress,Concordia, GIA, Cantus Quercus, Pavane, Abingdon, Paraclete and more. Also, as a composer of contemporary music, Glenn has written and arranged songs in a variety of genres from pop to jazz to classical, included in music videos, musicals, and solo and ensemble pieces throughout the United States and Canada.