I consider the "magic mix" to be something you should basically understand the concept of, and use this concept really at any stay of your painting. So, if you were to start your play stage with 8 colors, for example, you'd want to just remember those colors so that if you decided to put them all together as your "magic mix" (MM) you could then add a bit of this MM to any single color or combo of colors at any time and have a harmonious new color. I find myself using the MM more or less in the Explore and Clarify stage, but again, it is really just like mixing a new combination, but instead of a "tint, tone or shade", it is a truly related color that, when mixed with any color used in your work, will lead to beautiful harmony. A glaze is also considered a harmonizer for sure - when you have a painting that looks very disjointed, and filled with disparate colors that don't relate to one another, there is nothing like a glaze to create wonderful harmony!