Three years later his Paris debut with the "Concert Spirituel" was a major success and immediately established him as one of the main protaganists on the Parisian concert scene. Listeners at the time agreed that his flute playing, his pure intonation, brilliant technique and singing tone exceeded all previous standards.

After 1728 Blavet served at the court of the Prince of Carignan, to whom his first opus is dedicated. Probably in about 1732 he went to work for the Count of Clermont and continued to serve him for the remaining years of his life.The solo flutist in the "Musique du Roi" and the "Opera", Blavet garnered the best positions for a flutist in France at the time.

Blavet's sonatas belong among the masterpieces of the early flute repertory. Only one concerto survives - the first and final fast movements are written in the style of Vivaldi, French gavottes make up the slow middle section.

Four stage works were written for performance in the private theatres belonging to Count Clermont, one of the "Divertissements" received several performances at the Paris Opera.

Blavet was also recognized as a teacher and published several works intended for padagogical use including the three "Receuilis de pièces."