I teach theory up to grade eight and it's an essential part of teachings.
Books I recommend
6pm most Fridays on Zoom. Come join us! The current cohort is finishing grade three (Nov '21), so if more want to join we'll start at the very beginning!
What is theory of music?
Theory of music can be thought of as everything that can be transferred from instrument to another, rather than particular to the playing your particular one. It covers things like harmony, rhythm, notation and pitch.