liturgical music (including an edition of Missa cunctipotens genitor Deus, which most French organ composers used as a model for their mass settings) and helped the Catholic Counter Reformation. Work Nivers composed several religious vocal works, and published three organ books (1665, 1667, 1675) containing more than 200 pieces. They include suites in all ancient (ecclesiastical) modes, a mass, hymns, and settings of the Deo Gratias and Te Deum. These books are the first collections of organ music to have been printed in France since Jean Titelouze's. With his colleague and friend Lebègue, Nivers embodies the solo organ style which was subsequently represented - and adorned - by François Couperin and the short-lived Nicolas de Grigny. Several theoretical treatises by Nivers are preserved. They remain useful sources for knowledge of both musical theory and practice of his time. List of works This is a partial list of surviving works by Nivers. See William Pruitt, "Bibliographie des Oeuvres de Guillaume Gabriel Nivers", Recherches sur la musique française classique, Vol. XIII (1973), pp. 133–156. Notes on other publications located after that article was published are in papers deposited in Cambridge University Library (U.K.). All of the published works were published in Paris; many were reprinted several times during the 17th and the 18th centuries, however, here only dates of first editions are given. Instrumental Livre d'orgue contenant cent pièces de tous les tons de l'église (1665) 2e livre d'orgue contenant la messe et les hymnes de l'église (1667) 3e livre d'orgue des huit tons de l'église (1675) 3 dances for lute (spurious) Vocal Motets а voix seule [...] et quelques autres motets а deux voix propres pour les religieuses (1689) Miscellaneous works for the convent school at St Cyr: Cantique sur la conformité а la volonté de DieuChants de JephtéLe Temple de la paixOpéra de la vertuOpéra de sceauxLiturgical editionsGraduale romano-monasticum [...] in usum et gratiam monialium sub regula S.P.N. Benedicti, Augustini, Francisci militantium (1658)Chants des offices propres du séminaire de St-Sulpice (1668)Antiphonarium romanum [...] in usum et gratiam monialium sub regula S.P.N. Benedicti militantium (1671)Graduale romanum [...] in usum et gratiam monialium sub regula S.P.N. Augustini militantium (1687)Graduale monasticum [...] in usum et gratiam monialium sub regula S.P.N. Benedicti militantium (1687)Antiphonarium Praemonstratense (1680)Graduale Praemonstratense (1680)Passiones Domini N.J.C. cum lamentationibus Jeremiae prophetae, et formulis cantus ordinarii officii divini (1683)Offices divins а l'usage des dames et demoiselles établies par sa majesté à Saint-Cyr