A correspondence of Renaissance musicians

Part 1: a correspondence of Renaissance musicians history of the manuscripts Giovanni Spataro Pietro Aaron the art of composition Giovanni del Lago and his "Epistole" Giovanni del Lago's "Authorities" mensural notation. Part 2 The letters: the correspondence between Giovanni Spataro, Marc'Antonio Cavazzoni, Giovanni del Lago, and Pietro Aaron (nos. 1-67) Giovanni del Lago's correspondence with other musicians (nos. 68-98) Pietro Aaron's correspondence with other musicians (nos. 99-105) miscellaneous letters (nos. 106-110).