As music (believe me, I wanted to iterate your typo) is *often about time, it naturally wanders into a question of space (let us not start that thread again) and, as a composer of music using serial techniques (usually atonal *sounding), I often have predetermined the *space and harmonic context in which to fit a group of notes ... lending credence to the definition as "all of the arts" (not that serial music is specifically *artistic, but.)