In his first major published monograph, Music in the French Secular Theater, 1400–1550 (Cambridge, MA, 1963), Howard Mayer Brown skilfully plotted the development of musical practices in the traditions of farces, sotties, moralities and monologues until the middle of the sixteenth century, by which time the ‘influence of works from the ancient world and from Italy’ had turned the ‘current of educated opinion … against the older French forms’. Thus he chose to terminate his study just as the new forms of neo-classical comedy, tragedy, tragicomedy and pastorale were emerging, although he did allude fleetingly to the Protestant dramas of Louis des Masures in citing one of three cantiques from the Bergerie spirituelle (Geneva, 1566) as one of his two examples of ‘new music for the stage’. Des Masures's play is only one of a number of dramatic or quasi-dramatic pieces published with music as well as spoken text during the period 1550–1600, reflecting a fashion for new music specifically composed for the theatre. In the present paper I propose to examine this considerable repertory, which has largely escaped the attention of modern scholars.