The medieval term musica was used in a broader sense than the modern term music . As a subject of the Quadrivium, musica was a mathematical subject in its own right, which is foreign to modern musical thinking. As part of philosophy, musica figured within a manifold network of sciences (for example, astronomy, natural philosophy) which since around 1200 were taught properly in the faculty of arts. Containing articles by academics in the field of medieval music and philosophy, this volume highlights aspects of the emergence and history and theory of knowledge, and the appearance of more aesthetic conceptions of music.