The most important medieval treaty concerning the theory of music is De institutione Musica by Boethius. In this work, he presented an idea of musica mundana, which had been a predominant metaphysical conception of music until 14th century, when it was criticized by Johannes de Grocheo. Nevertheless, some aspects of Boethian doctrine were repeated even in 16th century by some theorists.

The most important medieval treaty concerning the theory of music is De institutione Musica by Boethius. In this work, he presented an idea of musica mundana, which had been a predominant metaphysical conception of music until 14th century, when it was criticized by Johannes de Grocheo. Nevertheless, some aspects of Boethian doctrine were repeated even in 16th century by some theorists.