Some people would like to compose or arrange music in order to enjoy it more. If you have been playing music since you were a child, you can compose and arrange music with your senses, but if you have started playing music as an adult, it may be a little difficult. However, if you learn a little music theory, you will be able to compose and arrange music in a fun and understandable way.
This section introduces the basics of music theory that will be useful in practice. If you are learning music theory for the first time, it would be easier to understand if you read the items below in order from the top. I hope this will be of some help to you in your musical activities.