Two of the most progressive voices in vocal jazz ensembles do not live in the thriving music centers of New York or Los Angeles. Rather, Kerry Marsh and Julia Dollison reside in the quiet college town of Greeley, Colorado. Marsh is in his second year as director of the University of Northern Colorado’s vocal jazz program, while Dollison has just completed a year as an applied jazz voice instructor at Metro State University in Denver. Yet the scope of this married couple’s talent stretches far across the country: Marsh arranges, rehearses and leads choirs for pop singer Ben Folds, and he has published nearly 150 vocal jazz arrangements through UNC Jazz Press and his own website. For several years, Dollison was one of the best singers on the New York jazz scene, where she released her first album, Observatory. Marsh and Dollison are in constant demand as clinicians at jazz festivals throughout North America. They currently lead a stellar vocal quartet called Vertical Voices (You can read a review of their current album “Fourward” here). However, it was when Vertical Voices was just Marsh and Dollison that they created their masterpiece, “The Music of Maria Schneider” (ArtistShare), which finds the two vocalists flawlessly singing all the horn parts of Schneider’s big band compositions, with the backing of Schneider’s rhythm section (and Schneider herself offering advice and encouragement from the control booth.) For this exclusive Jazz History Online interview, Thomas Cunniffe spoke with Marsh and Dollison by phone from their Greeley home about their lives, the Schneider album, and their current and future projects.