Simon P. Keefe is James Rossiter Hoyle Chair and Head of Music at the University of Sheffield. He is the author of three books on Mozart, including most recently Mozart's Requiem: Reception, Work, Completion (Cambridge University Press, 2012), which won the 2013 Marjorie Weston Emerson Award from the Mozart Society of America for the best book or edition published in 2011 or 2012. He is the editor of a further five volumes, all published by Cambridge University Press, including Mozart Studies (2006). In 2005 he was elected a life member of the Academy for Mozart Research at the International Mozart Foundation in Salzburg. He is general editor of the Royal Musical Association Monographs series and a 'Late Eighteenth-Century Composers' series and chairs the Royal Musical Association Publications Committee.