Jacob of Liège
Encyclopedia
Jacob of Liège, aka Jacobus Leodiensis or Jacques de Liège, is believed to have written the Speculum Musicae, The Mirror of Music, during the second quarter of the 14th century.
This, the largest surviving medieval work on music, was previously attributed to Jean de Muris
. It now seems likely that it was written by someone with the name Jacobus, who was probably born in the diocese of Liège, before going to study in Paris
in the late 13th century, and who returned to Liège to complete the final two books of his seven-volume treatise, Speculum musicae.
This, the largest surviving medieval work on music, was previously attributed to Jean de Muris
Jean de Muris
Johannes de Muris was a French philosopher, astronomer, mathematician, and music theorist best known for treatises on the ars nova.-References:*...
. It now seems likely that it was written by someone with the name Jacobus, who was probably born in the diocese of Liège, before going to study in Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...
in the late 13th century, and who returned to Liège to complete the final two books of his seven-volume treatise, Speculum musicae.