JARED C. HARTT is Associate Professor of Music Theory at the Oberlin College Conservatory of Music. JARED C. HARTT is Associate Professor of Music Theory at the Oberlin College Conservatory of Music. ELIZABETH EVA LEACH is Professor of Music at the University of Oxford and a Fellow of the British Academy. Her work focuses on song in the medieval West in the thirteenth and fourteenth centuries. GAËL SAINT-CRICQ is Professor of Musicology at the Université Lumière Lyon 2, France. MATTHEW P. THOMSON is Assistant Professor in Early Music, University College Dublin. Previously a Fitzjames Research Fellow at Merton College, Oxford, his research focuses on music of the thirteenth and fourteenth centuries, including polyphonic motets, monophonic song, and the role of music in literature. MARGARET BENT is an Emeritus Fellow of All Souls College, Oxford.