Sayonara Amerika, Sayonara Nippon: A Geopolitical Prehistory of J-Pop by Michael K. Bourdaghs. Columbia University Press, New York, 2012, 304 pp., $27.50 (paperback)

Michael K. Bourdaghs, the author of "Sayonara Amerika, Sayonara Nippon: a Geopolitical Prehistory of J-Pop," admits in the introduction he has "no formal training in musicology or ethnomusicology," but don't dismiss this work of true scholarship.