Music theorists labelled the musical art of the 1330s and 1340s as 'new' and 'modern'. A close reading of writings on music theory and the polyphonic repertory from the first half of the fourteenth century reveals a modern musical art that arose due to specific innovations in music notation. The French ars nova employed as its theoretical fundament a new system for arranging musical time proposed by the astronomer and mathematician Jean des Murs. Challenging prevailing accounts of the ars nova, this book presents the 'new art' within the intellectual context of its time, revises the datings of Jean des Murs's writings on music theory, and presents the intersection of theory and practice for a crucial era in the history of music. Through contemporaneous accounts, Desmond explores how individuals were involved in 'changing' music in early fourteenth-century France, and the technical developments they pursued that precipitated this stylistic change.

Challenges current accounts of the French ars nova, a musical art that was both criticised and heralded for its modernity.

Essays on important topics in early music.

A detailed critical and historical investigation of the development of musical notation as a powerful system of symbolic communication.

The first study focusing on the composition of new plainchant in northern-French confraternities for masses and offices in honor of saints thought to have healing powers

In the motets of Philippe de Vitry, Guillaume de Machaut, and their contemporaries, tenors have often been characterized as the primary shaping forces, prior in conception as well as in construction to the upper voices. Tenors are shaped by the interaction of talea and color, medieval terms now used to refer to the independent repetition of rhythms and pitches, respectively. The presence in the upper voices of the periodically repeating rhythmic patterns, often referred to as "isorhythm," has been characterized as an amplification of tenor structure. But a fresh look at the medieval treatises suggests a revised analytical vocabulary: for many fourteenth- and fifteenth-century writers, both color and talea involved rhythmic repetition, the latter in the upper voices specifically. And attention to upper-voice taleae independently of tenor structures brings renewed emphasis to the significant portion of the repertory in which upper voices evince formal schemes that differ from those in the tenors. These structures in turn suggest a revision of the presumed compositional process for motets, implying that in some cases upper-voice text and forms may have preceded the selection and organization of tenors. Such revisions have implications for hermeneutic endeavors, since not only the forms of motet voices but the meanings of their texts change, depending on whether analysis proceeds from the tenor up, or from the top down. Where the presumed compositional and structural primacy afforded to tenors has encouraged a strand of interpretation that reads the upper-voice poetry as conforming to, and amplifying, the tenor text snippets and their liturgical contexts, a "bottom-down" view casts tenors in a supporting role and reveals the poetic impulse of the upper voices as the organizing principle of motets.

The manuscript Seville, Biblioteca Colombina y Capitular 5-2-25, a composite of dozens of theoretical treatises, is one of the primary witnesses to late medieval music theory. Its numerous copies of significant texts have been the focus of substantial scholarly attention to date, but the shorter, unattributed, or fragmentary works have not yet received the same scrutiny. In this monograph, Cook demonstrates that a small group of such works, linked to the otherwise unknown Magister Johannes Pipudi, is in fact much more noteworthy than previous scholarship has observed. The not one but two copies of De arte cantus are in fact one of the earliest known sources for the Libellus cantus mensurabilis, purportedly by Jean des Murs and the most widely copied music theory treatise of its day, while Regulae contrapunctus, Nota quod novem sunt species contrapunctus, and a concluding set of notes in Catalan are early witnesses to the popular Ars contrapuncti treatises also attributed to des Murs. Disclosing newly discovered biographical information, it is revealed that Pipudi is most likely one Johannes Pipardi, familiar to Cardinal Jean de Blauzac, Vicar-General of Avignon. Cook provides the first biographical assessment for him and shows that late fourteenth-century Avignon was a plausible chronological and geographical milieu for the Seville treatises, hinting provocatively at a possible route of transmission for the Libellus from Paris to Italy. The monograph concludes with new transcriptions and the first English translations of the treatises.