See Guy Oldham, "Louis Couperin: A New Source of French Keyboard Music of the Mid-17th Century", Recherches sur la musique française classique, Vol.
Finally, in 1686 Nivers was in charge of the music at the Maison Royale de Saint-Louis in Saint-Cyr-l'École—a convent school for young ladies who were poor but of noble birth.
His colleagues at St Cyr were Jean-Baptiste Moreau, who worked there since the school's inception, and possibly Louis-Nicolas Clérambault, who may have helped Nivers from about 1710 until the latter's death in 1714.
They include suites in all ancient (ecclesiastical) modes, a mass, hymns, and settings of the Deo Gratias and Te Deum.
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.
See William Pruitt, "Bibliographie des Oeuvres de Guillaume Gabriel Nivers", Recherches sur la musique française classique, Vol.