It's one thing for you to know WHAT to do on the piano, but it's quite another thing for your hands to have the piano technique and the piano fingering to pull off what your mind instructs them to do. I might want to play a chromatic scale up and down two octaves, but without the technique & fingering to do it, I will think better of it and find some other solution. But you CAN train your hands and fingers so that they will be able to do what you tell them to do. Check out the CD course at "How To Make Your Hands Do What Your Brain Tells Them To Do"