Geschema, I was practicing and thinking about this problem of not being able to concentrate

, and realized that it actually only matters if you aren't accomplishing what you need to accomplish in your work. If your mind is wandering but you are playing exactly the way that you want to, who cares ?

There was another thread about this in the performance section not too long ago and I had some thoughts on it then that are still true, but I have something new to add (to my other thoughts from before) in that, if you give yourself a price to pay for not achieving what you need to achieve, and honestly hold yourself to it, you are going to find a way to bring your attention and focus in when you need to. For example, I have 10 highlighter pens sitting on one side of the keyboard and my goal for a given chunk is to play it *perfectly* ... not even a slight slip of the tip of my finger on a single note (even if it doesn't actually cause an error in sound), 10 times in a row (I move one highlighter across the keyboard to the other side for each one I do perfectly) -- if I mess up on the 10th one, they all move back *seriously* !! Sometimes it has literally taken me more than an hour to do one measure (that was to begin with), because I had to really wrangle my mind into cooperating with me !
Throughout the week though, I realized that I really meant business and that it was taking me FAR too long to get through my work that way, so something had to change !! I got a lot more careful and a lot more willing to pay extra close attention to what I was doing, and eventually the standard of playing goes up.
As an interesting side note, yes, for whatever reason, playing the piano brings up ALL sorts of things in my mind. I may be having memories from distant childhood days, or from 10 years ago, or be dwelling over particular problems in my life or have an under-riding sense of hurt from past pianistic/musical failures/experiences ... and, I have noticed that really holding myself more responsible for my playing forces me to clean out my consciousness, too !! There is just no room for some of that thinking when I am really trying to get my playing in gear. So, interestingly, I may be on my 10th run-through with a section and suddenly I find myself having some super negative thought and inevitably I mess up in a pretty major way. hmmm ... I have to start it all over again and though the physical task may be getting easier for me, it's really a matter of challenging myself mentally to stay on the right path.