By Suzette Heald
By Veit Erlmann (Professor and Endowed Chair, School of Music, Professor and Endowed Chair, University of Texas, Austin)
By Valerie Marett
By David D. Laitin
By Andrea Pacini (Research Fellow, Research Fellow, Giovanni Agnelli Foundation, Turin, Italy)
By O Roy
By David M. Anderson
By Margot Lee Shetterly
By Nazir-Ali, Michael
By Edward S. Curtis, The Library of Congress