are seven days in a week, seven notes in a diatonic scale of music, and then
there is the seventh heaven...
word music derives from the greek governed by the muses...
Musical sounds are like darts propelled by the Musician...
Instrumentalis - instrumental music
Humana - music of the human organism, resonance between soul + body
Musica Mundana - the music made by the cosmos itself - music of the spheres