Colin Lawson is Director of the Royal College of Music, London. He is a world-renowned period clarinettist and has played principal in most of Britain's leading period orchestras, with which he has recorded and toured worldwide. He has published extensively and is co-editor, with Robin Stowell, of a series of Cambridge Handbooks to the Historical Performance of Music as well as of The Cambridge History of Musical Performance (Cambridge, 2012). Robin Stowell is Emeritus Professor of Music at Cardiff University. As a violinist he has performed, broadcast and recorded with the Academy of Ancient Music and other period ensembles. He is the author of Violin Technique and Performance Practice in the Late Eighteenth and Early Nineteenth Centuries (Cambridge, 1985) and his other major publications include The Early Violin and Viola (Cambridge, 2001) and three Cambridge Companions – to the violin (1992), cello (1999) and string quartet (2003).