Tim Carter is the author of the Cambridge Opera Handbook on Mozart's Le nozze di Figaro (1987), Jacopo Peri (1561-1633): His Life and Works (1989), Music in Late Renaissance and Early Baroque Italy (1992) and Monteverdi's Musical Theatre (2002). He has also published numerous journal articles and essays on music in sixteenth- and early seventeenth-century Italy; those to 1998 were reprinted in Music, Patronage and Printing in Late Renaissance Florence and Monteverdi and his Contemporaries (both 2000). In 2001 he moved from Royal Holloway, University of London, to become David G. Frey Distinguished Professor of Music at the University of North Carolina, Chapel Hill. John Butt is Gardiner Professor of Music at the University of Glasgow. His book Playing With History: The Historical Approach to Music Performance (Cambridge University Press, 2002) was the winner of the 2003 Dent Medal, and was shortlisted for the 2003 British Academy Book Prize. He is the author of Music Education and the Art of Performance in the German Baroque (Cambridge University Press, 1994), Bach: Mass in B Minor (Cambridge University Press, 1991) and Bach Interpretation (Cambridge University Press, 1990), and edited The Cambridge Companion to Bach (Cambridge University Press, 1997).