This volume marks the exhibition 'Cambridge Music Manuscripts, 900-1700', mounted in the Fitzwilliam Museum in 1982. It draws together fifty-three manuscripts of polyphony and monophony from the college and university libraries of Cambridge, all selected for their textual and historical importance. A full technical description of each source is followed by a critical appraisal, and in most cases at least one illustration is provided. Many of these manuscripts have never been adequately described in print, and this book will be a valuable work of reference for musicologists, historians and paleographers. Its plates will also provide a varied selection of transcription exercises for students of notation.