By ABRSM
By Trinity College London
By Trinity Guildhall
By Lee Higgins (Associate Professor of Music Education, Associate Professor of Music Education, Boston University, Newton Center, MA)
By Peter Renshaw
By Stephen Davies
By Peter Kivy
By Martin Fautley
By Malcolm Budd
By Gordon Shaw
By Julian Johnson (Lecturer in Music, Lecturer in Music, Oxford University)
By Anthony E. Kemp (Department of Arts and Humanities in Education, Department of Arts and Humanities in Education, University of Reading)
By Raymond A. R. MacDonald (, Department of Psychology, Glasgow Caledonian University), David J Hargreaves (, Faculty of Education Psychology, University of Surrey Roehampton), Dorothy Miell (, The Open University)
By R.A. Sharpe
By Robin Maconie (Professor of Music, Professor of Music, Savannah College of Art and Design, Georgia, USA)
By Carl Dahlhaus, William W. Austin
By Michael Krausz
By Nicholas Cook (Professor of Music Cambridge University)
By Malcolm Boyd
By Arnold Schoenberg
By Alistair Wightman
By Hugh Benham, Alistair Wightman
By Anna Butterworth
By David Bowman, Paul Terry
By Francois Allard, Richard Lecocq