'There are three reasons for its success. Firstly, a huge arc of musical history is investigated. It explores beyond the 'Manchester Group', into areas which have not been adequately studied. Secondly, the extensive bibliography is an ideal place to commence any in-depth enquiry into this generation of composers. Thirdly, the musical works analysed may be challenging, but they are all important and significant contributions to the period. Philip Rupprecht's clever approach to this investigation combines technical details with reception history which makes this book an impressive gateway into this complex, sometimes off-putting, but always thought-provoking musical world. … This present volume is an essential survey of a generation of British music that has been largely ignored. … I believe that this book sets the baseline for all research into the 'avant-garde' of the British post-Second World War era.' John France, MusicWeb International (www.musicweb-international.com)