Dr, David Wright lives with his wife, Sandi, in a St. Louis, Missouri home built in 1904.  He is a coach, judge, singer, and an arranger and composer of vocal music. He specializes in a cappella harmony, especially music in the barbershop style, but his work often integrates the close harmony style with jazz, blues, gospel, country, doo-wop, and contemporary a cappella.


He is Associate Director and two-time former director for the St. Charles Ambassadors of Harmony, a 120-voice male chorus which won the Barbershop Harmony Society's International Chorus Contest in 2004, 2009, 2012 and 2016, and the silver medal in 2007, 2008 and 2019. David serves on the coaching team of the Ronninge Show Chorus, 2013, 2016 and 2019 Sweet Adelines International Championship Chorus and of Toronto Northern Lights, 2013 International Championship chorus.  David is a musical consultant and arranger for the eleven-time international champion chorus Dallas Vocal Majority, and has served in this role for numerous international champion quartets including AmbianceGas House GangNightlifeMichigan JakeFour VoicesGotcha!Vocal SpectrumCrossroads, RingmastersMusical Island Boys and After Hours.


He has researched the origins of barbershop harmony and teaches a course on the history of the barbershop style at the Barbershop Harmony Society's Harmony University.

Professionally, David is a mathematician. He received his Ph.D. in Mathematics from Columbia University, New York City, and is now a Professor Emeritus in the Department of Mathematics at Washington University in St. Louis. As a researcher he has been an invited speaker at a number of international mathematics conferences. Visit David's Mathematics Web Site