Etymology of Definition of music

The word music comes from the Greek mousikê (tekhnê) by way of the Latin musica. It is ultimately derived from mousa, the Greek word for muse. In ancient Greece, the word mousike was used to mean any of the arts or sciences governed by the Muses. Later, in Rome, ars musica embraced poetry as well as instrument-oriented music. In the European Middle Ages, musica was part of the mathematical quadrivium: arithmetics, geometry, astronomy and musica. The concept of musica was split into three major kinds by the fifth century philosopher, Boethius: musica universalis, musica humana, and musica instrumentalis. Of those, only the last—musica instrumentalis—referred to music as performed sound.