The choral conductor's aural tutor : training the ear to diagnose vocal problems : a companion to the choral warm-up - Jordan, James Mark, 1953-, (GIA Publications, 2006)
Incluye recursos complementarios: dos disco compactos de estudio auditivo con The Westminster Williamson Voice de Westminster Choir College of Rider University y The Pennsbury High School Chamber Choir, acompañando, Marilyn Shenenberger, director, James Jordan