The manuscript from the royal monastery of Las Huelgas in Spain has fascinated musicians and medieval musicologists for nearly 100 years. The collection, put together at the beginning of the 14th century in this Cistercian monastery near Burgos, contains 179 musical works of great importance and variety. The texted music brings together archaic music, numerous works which come directly from the Notre Dame School in Paris, and compositions written specifically for the monastery (the nuns to this day have retained a vocal style which seems to testify to an uninterrupted tradition).