Musical theory is vital knowledge for anyone wishing to compose music involving more than
half a dozen instruments. It is recommended knowledge for anyone wishing to arrange music for more than half a dozen instruments. Anyone who writes music for more than about half a dozen instruments without knowledge of
musical theory is inevitably either writing an arrangement of a simpler piece or composing
modern music.
Serving suggestion: Musical theory best served with at least 2 years experience with actual musical instrument.