Associate Director:

David Wright is a professor in the Department of Mathematics at Washington Universiity in St. Louis, where he currently serves as Department Chair. He received his Ph.D. in Mathematics from Columbia University, New York City. A leading researcher in the fields of affine algebraic geometry and polynomial automorphisms, he has produced landmark publications in these areas and has been an invited speaker at numerous international mathematics conferences. He designed and teaches a university course in Mathematics and Music.

As a musician, David is an arranger and composer, where his work often integrates the close harmony style with jazz, blues, gospel, country, doo-wop, and contemporary a cappella. He has been on the leadership team of the St. Charles Ambassadors of Harmony since 1981, serving as director from 1981 to 1990, and again from 1999 to 2001. He also serves as a musical consultant and arranger for numerous other vocal ensembles, including the eleven-time International Champion Dallas Vocal Majority. In the Barbershop Harmony Society's judging system he helped design the Music Category and served as its first Category Specialist. As arranger and historian David has been featured in national radio and TV broadcasts at home and abroad, and has authored several articles on barbershop harmony and its role in the world of vocal harmony.

His wife, Sandi, a double gold medalist in Sweet Adelines, sang baritone in the renowned championship quartet Ambiance, for whom David was arranger and advisor. Sandi directs the St. Louis Harmony Chorus.