Lawrence Earp (Emeritus Professor of Musicology at the University of Wisconsin-Madison). His articles focus on late medieval French music and its modern reception. He is the principal author of the commentary to the facsimile of the Ferrell-Vogüé Machaut manuscript. Jared C. Hartt (Professor of Music Theory at the Oberlin Conservatory of Music). His publications include several articles on the music of Machaut, an edited volume, A Critical Companion to Medieval Motets, and a co-authored monograph, The Dorset Rotulus.