Review of the hardback: 'To have identified a substantial body of music composed by and copied in the hand of this eleventh-century monk represents a breathtaking synthesis of research that few medievalists would have deemed possible several decades ago. To be able to date much of the music and its copying to a six-month period in the year 1029 is simply stunning. And to have such a musical œuvre accessible from someone in the first half of the eleventh century is unprecedented. If anyone doubts that real history can be as captivating as the best fiction, come meet Adémar and read this book.' Journal of the American Musicological Society