The Study of Medieval Chant: Paths and Bridges, East and West. In Honor of Kenneth Levy

Peter Jeffery with Margot E. Fassler, Ruth Steiner, Keith Falconer, Jorgen Raasted, Nicolas Schidlovsky, James W McKinnon, Michel Huglo, Charles M Atkinson, David G Hughes, Alejandro Planchart, Dimitrije Stefanović, Milos Velimirovic