Grenon was operating towards the Duke of Burgundy seeing that a member from the chapel in 1385. By 1399 he was a clerk on the Cathedral of Notre Dame in Paris and in 1403 transferred to the Cathedral of Laon being a choirboy expert. By 1412 he was operating towards the Duke of Burgundy once more where he became the movie director from the choirboys and was resposible for nourishing, clothing and casing them. His compositions included secular tunes, people and motets, the three styles of polyphony after that being practiced. The number of his specialized methods included putting the melody in the best voice followed by two lower devices, employing the usage of isorhythmic products, and sometimes using rhythmic dimunution.