In this comprehensive study of Olivier Messiaen's magnum opus, Saint Fran ois d'Assise, Vincent Perez Benitez examines the opera from both theological and musical-analytical perspectives to ask how Messiaen expresses his Catholic theology through his work. Benitez combines a close reading of the opera score with accounts from Messiaen's associates, studies of Messiaen's birdsong notebooks and other primary documents, and an examination of...