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About the Author
David Wr ig ht is professor of mathematics at Washington University in St.
Louis, where he currently serves as Chair of the Mathematics Department.
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, the notes from which formed the beginnings of this book.
As a musician, David is an arranger and composer of vocal music, where
his work often integrates the close harmony style called barbershop harmony
with jazz, blues, gospel, country, doo-wop, and contemporary a cappella. He
is Associate Director of the St. Charles Ambassadors of Harmony, an award
winning male chorus of 160 singers. He also serves a s a musical consultant
and arranger for numerous other vocal ensembles. He is active in the Bar-
bershop Harmony Society and was inducted into its Hall of Fame in 2008.
As arranger and music historian David has been featured in national radio
and TV broadcasts at home a nd abroad, and has authored several articles
on vocal harmony.
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