John Potter is a singer and author. His performance projects include The Dowland Project, Red Byrd and the Gavin Bryars Ensemble as well as new programmes with harp, lute and vihuela. He is currently Reader in Music at the University of York, and is the author of Vocal Authority (Cambridge University Press) and Tenor: History of a Voice (Yale University Press). His most recent CD is Being Dufay (ECM New Series 2071). This realisation of 15th century Dufay fragments by Ambrose Field is also available as a multimedia event with Ambrose Field (live electronics) and a video by Mick Lynch.