Victor Coelho is Professor of Music and Director of the Center for Early Music Studies at Boston University, a fellow of Villa I Tatti, the Harvard University Center for Italian Renaissance Studies in Florence, and a lutenist and guitarist. His books include Music and Science in the Age of Galileo, The Manuscript Sources of Seventeenth-Century Italian Lute Music, Performance on Lute, Guitar, and Vihuela, and The Cambridge Companion to the Guitar.
Keith Polk is Professor Emeritus, University of New Hampshire, and has also taught at Brandeis University, the New England Conservatory, and Regents College, London. He is one of the foremost authorities on Renaissance instrumental music, and has produced numerous articles and several books on the subject, including German Instrumental Music of the Late Middle Ages (Cambridge University Press, 1992).