Describe MUSIC THEORY in the best way PLEAS

Music theory is the study of the practices and possibilities of music.  Music theory is frequently concerned with describing how musicians and composers make music, including tuning systems and composition methods among other topics

One of the most important things to remember about music theory is that music came first. Music existed for thousands of years before theory came along to explain what people were trying to accomplish when pounding on their drums.

So, don’t ever think that you can’t be a good musician just because you’ve never taken a theory class. In fact, if you are a good musician, you likely already know a lot of theory. You simply may not know the terminology or technicalities.

The concepts and rules that make up music theory are much like the grammatical rules that govern written language (which also came along after people had successfully discovered how to talk to one another). Just as being able to transcribe language made it possible for people far away to “hear” conversations and stories the way the author intended, being able to transcribe music allows musicians to read and play compositions exactly as the composer intended.

Plenty of people in the world can’t read or write, but they can still communicate their thoughts and feelings verbally just fine. In the same way, plenty of intuitive, self-taught musicians have never learned to read or write music and find the whole idea of learning music theory tedious and unnecessary. However, just like the educational leaps that can come with learning to read and write, music theory can help musicians master new techniques, perform unfamiliar styles of music, and develop the confidence they need to try new things.