Latin treatises on musical theory, some unique, including works by Theinred of Dover and Franco of Cologne, in an English manuscript bought in 1477 by a Cistercian monk of Byland Abbey, Yorkshire, but possibly early enough to have been recorded at York in 1372.
Theinred of Dover: De legitimis ordinibus pentachordorum et tetrachordorum.
Franco of Cologne: Ars cantus mensurabilis. Breuiarum regulare musicae.
Pages with musical notation:
etc. to:
then