Theory. Sources of information ; Principles of mensural notation ; Definitions and descriptions of tactus ; Tactus and rhythm ; Tactus and signs in fifteenth-century music theory ; Tactus and signs in sixteenth-century music theory ; Tactus and tempo
Practice. The songs of Du Fay ; The L'homme armâe masses of Ockeghem, Busnoys, and Josquin ; The five- and six-voice motets of Josquin ; The Choralis Constantinus of Isaac ; The masses of Palestrina ; The madrigals of Rore ; Popular songs and dances.