The structure of music is called 「musical grammar」 or 「musical theory」.
Learning through listening is easier than learning through reading but it is still possible.
This page is designed for people who have no knowledge of what musical theory is all about. One can learn it at their own pace.
If you have figured out the “QactusCore-Method”, you will be able to learn and enjoy music. It will be worth practicing because this method belongs to musical theory.
However, sometimes it may be difficult for you.
Try to enjoy and study without becoming frustrated.