Concert Spirituel
In 1726 he joined the Duke of Carignan and took part in the newly formed "Concert Spirituel" for the first time. On 1 October 1728 Louis XV granted Blavet a privilege to publish flute sonatas for a period of six years, but by 1731 he had transferred to the service of Louis, Count of Clermont and became his steward of music. In 1728 he published his first book of flute music, containing six sonatas for two flutes without bass. From 1731 to 1735, he performed at the Concert Spirituel with Jean-Marie Leclair, Jean-Pierre Guignon, Jean-Joseph de Mondonville, Jean-Baptiste Senaillé, and Jacques Aubert.