(b Braine l'Alleud, c.1435; d ?1511).
Franco‐Flemish theorist and composer. Entered service of King of Naples c.1472 as tutor to King's daughter. His treatise Terminorum musicae diffinitorium (Treviso, 1495) was probably written in 1472. It contains 299 definitions of terms then in use. His Liber de arte contrapuncti (1477) contains principles of consonance and dissonance and discussions on counterpoint. Comp. several masses and secular songs. Was also painter, lawyer, and mathematician.