FR
Composer
A.k.a. Jehan Vaillant
Jehan Vaillant (sometimes spelled Johannes Vayllant) (fl. 1360–90) was a French music composer and theorist. He is named immediately after Guillaume de Machaut by the Règles de la seconde rhétorique, which describes him as a "master … who had a school of music in Paris". Besides five (possibly six) pieces of music surviving to his name, he was also the author of a treatise on tuning.