Cohen, David E. Research Group Histories of Music, Mind, and Body, Max Planck Institute for Empirical Aesthetics, Max Planck Society;
Cohen, D. E. (2020). Before and after John of Garland: The concept of directed dyadic progression and its prehistory. Music Theory and Analysis, 7(1), 63-113. doi:10.11116/MTA.7.1.2.