Nicolas-Étienne Framery

Nicolas-Étienne Framery (25 March 1745, Rouen – 26 November 1810, Paris) was a French music theorist, critic and lyric writer associated with opera, especially opéra comique. He wrote and adapted librettos. His work became more adademic and abstract and he eventually became surintendant de la musique for the Comte d'Artois, (who would become Charles X of France).

...
Wikipedia