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Classical: Choral Music Moods: A Cappella Holiday: Classical Classical: Mass

By Location
United States - Colorado

Firesign Vocal Quartet website Ben Riggs website Donna Wickham website Firesign Vocal Quartet Facebook Terry Schlenker website

Firesign Vocal Quartet

Firesign Vocal Quartet is a Denver-based professional vocal quartet. They perform throughout the region, singing everything from Renaissance madrigals to jazz, avant garde, and their own original compositions. The members of Firesign Vocal Quartet are JoAnn Gudvangen-Brown (soprano), Donna Wickham (alto), Ben Riggs (tenor), and Terry Schlenker (bass).

Donna Wickham holds a BM in vocal performance and an MM in conducting from the Lamont School of Music at the University of Denver. She is the head of the Vocal Jazz program at the Lamont School of Music, and teaches music history courses for Colorado Community Colleges Online. Her diverse professional activities include work as a jazz composer, arranger and performer, conductor, keyboardist and electric bass player, in genres that range from early music to rock, jazz and avant-garde. Donna’s performance credits include work with the Santa Fe Desert Chorale, The Playground, Colorado Music Festival, Santa Fe New Music, the Denver Concert Band, and the Colorado Art Rock Society. To learn more about Donna, visit her website at

Terry Schlenker studied music composition at the University of North Dakota and at the University of Denver’s Lamont School of Music, from which he holds a Master of Art’s Degree in Composition. Terry’s choral compositions are widely performed, recorded, and published. His music has been featured on the National Public Radio programs of Sacred Classics and Classical Discoveries, as well as the Colorado Public Radio programs of Colorado Matters and Colorado Spotlight. His work has been performed at the National Conventions of Chorus America and ACDA (The American Choral Director’s Association), the International festival of GALA Choruses and the National Choral Festival. Learn more about Terry at

JoAnn Gudvangen-Brown holds a B.M. in piano from St. Olaf College and an M.A. in piano/choral conducting from the University of Denver. She is currently the Music Director at University Park Methodist Church, choral accompanist at DU, studio teacher and mom of three busy kids.

Ben Riggs is the Artistic Director and conductor of the Denver Gay Men's Chorus and the Boulder Chorale. In addition, Ben is the conductor of the Concert Choir at Regis University. Ben previously served as an adjunct faculty member at Denver's Iliff School of Theology, where he directed the Iliff Choir. Ben received a B.M. in piano from Wheaton College Conservatory of Music, and an M.M. in choral conducting from the University of Colorado. At present, he is completing a Doctor of Musical Arts degree in Choral Literature and Performance at the University of Colorado. Learn more about Ben at