His manuscript Musica magistrii Johannis de Muris accurtata de musica Boethii is a collective work on the theory of music inspired by the thoughts of Johan de Muris and is in the university library .
Johan de Muris worked in Paris .
His manuscript Musica magistrii Johannis de Muris accurtata de musica Boethii is a collective work on the theory of music inspired by the thoughts of Johan de Muris , who worked in Paris , and is in the university library .