Dennis's formal music education includes an Associate of Arts Degree with emphasis in music from Foothill College in Los Altos Hills, California, a Bachelor of Music Degree from the University of Montana in Missoula, Montana, and a Masters of Music Degree from Northwestern University in Evanston, Illinois.

Over the years Dennis has been involved with many denominations including Lutheran, Methodist, Catholic, and Presbyterian as a chancel choir or youth choir director.

Dennis owns Evolutions - A Voice Studio with locations in Woodinville and Issaquah, Washington. He teaches approximately fifty private students from ages fifteen and up with a strong emphasis on the classical approach to singing and vocal technique. He prepares
students for recitals, auditions, district and state solo and ensemble contests, college entrance, professional advancement, and personal improvement and enjoyment. He receives referrals from many sources including high school and college choir directors, other voice teachers, music stores, and word of mouth.

Dennis works as a para-professional in the Norhshore School District and is an adjunct faculty member at Bellevue Community College.

Dennis has been a member of National Association of Teachers of Singing (NATS) - Puget Sound Chapter for thirty two years and presently serves as Treasurer on the Board of Directors.

Dennis was a founding member of the Bellevue Chamber Chorus and participated for several years as a singer or soloist before joining the Northwest Chamber Chorus where he again performed as a singer and soloist.

Dennis and his wife, Brenda, live in Duvall. They came to Wooden Cross Lutheran Church in 2004 when he accepted the position of Choir Director and she joined the choir as a member and soloist. The couple have two grown children who also are accomplished musicians.