By Veit Erlmann (Professor and Endowed Chair, School of Music, Professor and Endowed Chair, University of Texas, Austin)
By Lloyd Bradley (Author and contributor)
By Johnny Cash
By Barney Hoskyns
By Dr. Daniel Saulnier, Dr. Mary Berry
By Roger Parker
By Harold C. Schonberg
By Jan Swafford
By Roger Evans
By MacGregor, Helen, Dexter, Alison, Collins Music
By Scharnagl, August
By David Hepworth
By Bob Gendron
By Jace Clayton
By Happy Traum
By Julian Cope
By David Cartwright
By Peter Robinson
By Ken Garner
By Clemency Burton-Hill
By Joel Selvin, Pamela Turley
By Paul Steinbeck
By Jeff Apter
By John Robertson
By D.X. Ferris
By Richard Ingham (Leeds College of Music)
By Tony Bacon
By Amber Easby, Henry Oliver
By Wilson Neate