Mo Field

Artistic and Musical Director

Great Northern Union's Artistic and Musical Director is the wonderfully talented Mo Field.

A former director of the internationally acclaimed Stockholm City Voices, a 42-voice women's a cappella ensemble, from Stockholm, Sweden, Field brings to the GNU a wealth of experience as a choral director and music educator. She is an accomplished musician and a sought-after vocal performance coach, arranger, workshop facilitator, life coach and mentor. 

Field also recently became certified as a Performance Judge for the Barbershop Harmony Society and is a frequent lecturer/faculty member at BHS’s Harmony University.

Originally from Canada and coming from a family of musicians, Field has always had music in her spirit. From orchestral performances on French horn, to theatre and music production, to her passion for playing electric bass in the funk, soul, Motown, and R&B genres, Field has enjoyed a vast musical career as a professional musician across the board.

Field becomes GNU’s fifth musical director in the organization’s 34-year history, succeeding Douglas Carnes (2015-2018), Peter Benson (2002-2014), Dean Haagenson (1993-1994), and Roger Williams (1985-1994, 1995-2002).


Brandon Galbraith

Associate Musical Director

Brandon Galbraith is the Great Northern Union’s Associate Musical Director.

Galbraith has been a GNU member since 2013, serving as a section leader and a front row performer before being named Associate Director in 2019. Galbraith currently directs two other barbershop choruses: the Vallee de Croix Chorus of Stillwater and the North Star Chorus of St. Paul.

Outside of the barbershop world, Galbraith's musical resume includes performing with Hamline United Methodist Church, the Gethsemane Episcopal Church choir, the MPLS (imPulse) choir, the Minnesota Chorale, and Singers In Accord. He is a graduate of the University of Minnesota with a Bachelor of Music degree in Music Education.

Originally from Fort Atkinson, Wis., Galbraith lives in Minneapolis and enjoys gaming, anime, golfing and Green Bay Packers in his free time.


Thomas Pepin

Executive Director

Thomas started his journey with music in 2001 when he attended the University of Minnesota School of Music as a vocal performance major. Thomas has loved working with local community theaters, the Minnesota Opera and the MN Chorale to name a few.

Soon after that, Thomas switched up his career path and became an Aveda stylist in 2004 and for the last 8 years has been in Aveda Global Haircolor Purefessional and Expert Stylist. Traveling the globe and inspiring salons and stylists It's just another one of his passions. Through his Purefessional business, he was exposed to the Great Northern Union in 2015 and quickly became a member. Since joining the chorus in 2015, Thomas has been a predominant bass voice of the ensemble, including being a founding member of the small ensemble Thursday Night Special.

As we started our search for a new artistic director, Thomas stepped up and chaired our director search committee in helping find our current artistic director Mo Field. Thomas became the Executive Director of Music & Performance in 2020 and is currently transitioning into Director of Operations under our new reorganization.