School of St. Martial

An important school of the 10th to 12th centuries located at the Abbey of St. Martial in Limoges (also known as the school of Limoges).  Aside from composing many sequences and tropes (chiefly 10th and 11th centuries), it is important mainly for its contribution to the development of organum, in which the polyphonic school of St. Martial (c. 1100-1150) immediately preceded Notre Dame.