Music theory or language is about explaining the music we hear through scientific terms and formulas. that you have never toke a music theory class does not make you a lesser musician, in fact if you are a good musician, you already know a lot of music theory, but the only thing is that you just may not know the scientific terms and formulas for what you are doing.
Music theory is very much like learning the grammatical rules in a written language, also it is to composers what grammar is to poets.
why is music theory necessary?
Music theory is necessary and rewarding if you want to go into music, because it helps in learning new techniques, and performing rare and unfamiliar styles of music. It can also boost your confidence to explore the unexplored in the music scenes.
I believe that in music you reap what you sow, so for composers it is strictly advisable to get a bit of music theory, because it makes it easier for you and puts you in a place to know what is next and what to expect before it comes. But it takes some sacrifices and discipline such as: MONEY, TIME, your INTELLECT and you may also have to sacrifice what you love most doing! but at the end it pays.
Remember, “when the going gets tough the tough get going” and “all perseverance leads to conquering”. Learning music theory is a higher and deeper thing altogether from having the musical talent and can sing very well, it is like a mere computer operator learning computer engineering!
MusikMasters 