Thomas Keesecker has served as a musician in Lutheran and Roman Catholic parishes in Virginia, Montana, and Maryland. His award-winning choral music has been published by several publishers.

His studies at the Berklee College of Music in Boston and the Catholic University School of Music in Washington, D.C., prepared him for a career in which he has mixed classical technique and jazz improvisation. During the last decade, he has explored the nexus of creativity and healing and its implication for liturgical musicians.

He and his wife, Tricia, have been married since 1979.