This article introduces major scales, natural minor scales, harmonic minor scales, melodic minor scales, and key. Scales and keys are the foundation of music theory. There are many scenes that are useful in doing music because it is the foundation. For example, learning scales and keys makes it easier to compose, copy by ear, and improvise!

In this article, I will explain the differences between "pitch", "interval", and "degree", which are surprisingly easy to confuse.pitches, Intervals and degrees are important concepts in music. Understanding these concepts will help you write and perform music. Only the key points are explained, so you can read it quickly!