Egon Wellesz presents here an in-depth survey of Christian music in the Byzantine tradition. Wellesz discusses the present state of research and the problems inherent in such a survey, and describes the notation and symbols used in the manuscript tradition.

Egon Wellesz presents here a thorough study of music in the Ethiopic Christian tradition. Wellesz’s discussion includes a survey of previous literature, a comparison of musical features with other traditions, and examples of Ethiopic musical texts.