Microtonal music is a subject seldom tackled. First, it's complex and pretty much endless, and then it's also quite obscure, being only rarely used in day-to-day context. Therefore, it's often never even encountered to begin with. With this article, I will try to demystify the theory behind microtonal music so you can understand it, and hopefully appreciate it. I will also hop between the terms microtonal and xenharmonic, as they are interchangeable.