Las Huelgas Codex

The Codex Las Huelgas is a music manuscript or codex from c. 1300 which originated in and has remained in the Cistercian convent of Santa María la Real de Las Huelgas in Burgos, in northern Spain.

The manuscript contains 45 monophonic pieces (20 sequences, 5 conductus, 10 Benedicamus tropes) and 141 polyphonic compositions.

The bulk of material is written in one hand, although as many as 12 people contributed to it, including corrections and later additions.

Johannes Roderici (Juan Rodríguez in modern Spanish) inscribed his name in a number of places in the manuscript.

In 1217, the General Chapter complained about two English abbeys which were said to sing in three or four parts in the manner of non-monastic churches; the implication is that two-part polyphony was then acceptable, and the manuscript contains two-part solfège exercises with notations on their use in the convent.