"Anyone who can play The Mikrokosmos beginning to end will know how to play the piano. They will also have been exposed to a wide range of musical effects the piano can produce. They will also have been given an awareness of what a musical idea is and of what kind of ideas music can evoke. The Mikrokosmos is not called The Mikrokosmos for nothing. It probably does contain everything a pianist will ever need to know but IT DOES NOT TEACH HOW TO HAVE A MUSICAL IDEA. This is not a failing. Leading a person to the edge and leaving them there is all that can be done.
However, IF a person is gifted to having musical ideas then all they have do is 1) have them and 2) reverse engineer that knowledge to develop, detail and document those ideas for others to benefit."