Johannes Tinctoris (1435?-1511) was a Renaissance music theorist and composer from the Low Countries. Up to his time, he is perhaps the most significant European writer on music since Guido of Arezzo. He is known to have studied in Orléans, and to have been master of the choir there; he also may have been director of choirboys at Chartres. Because he was paid through the office of petites vicars at Cambrai Cathedral for four months in 1460, it has been speculated that he studied with Guillaume Dufay, who spent the last part of his life there; certainly Tinctoris must at least have known the elder Burgundian there. Tinctoris went to Naples about 1472 and spent most of the rest of his life in Italy.