Oorspronklik: Vocal Improvisation Games. For Singers and Choral Groups. "This book is a must-have resource for all choral music educators.
Vertaling: Vokaal Spele. Koorleier, Phoenixville High School, Phoenixville, PA. . Voice bladmusiek. Vokaal Spele. Vir Singers en Choral Groepe.