I had a similar problem when I was in my 20s so my teacher then would advise me to practice concentration exercises such as staring at the flame of a candle for five minutes, then close my eyes and keep the image of the flame in my mind.
I played in an adult masterclass for pianist Andrew Matthews-Owen last year and he offered some very interesting tips.
I'm still convinced that the best method to improve and work on focus and concentration is to always dedicate a part of your practice sessions on just playing the pieces, scales or whatever you want as slow as you can possibly imagine, really slow.
I'm still convinced that the best method to improve and work on focus and concentration is to always dedicate a part of your practice sessions on just playing the pieces, scales or whatever you want as slow as you can possibly imagine, really slow. My teacher always reminds me of how his teacher (who in turn learned this with Dieter Weber in Vienna back in the 60s-70s) worked concentration with him, he always puts the Chopin op.10 no.4 as an example, he said his teacher had him play it at about 50-60 bpm each 16th paying close attention to every little detail, from each individual sound to the movement of each finger, and at the very first imprecision or mistake he would make him start it all over again until he got to the end perfectly. The point of doing this is that you're focused on so many things at the same time that you literally don't have time for distraction or loose concentration. Of course, it's not something you get right at the first attempt, but eventually you will with patient practice.
Its interesting - in the day and age of technology where we are constantly getting stimulated in short blurbs, attention spans and concentration are suffering...perhaps there is a coincidence Make sure to focus on the music. That seems like an overly simplistic solution, but when we are dialed in on what sound we are producing that very moment, it will be hard to think about anything else or brain wandering.Just make sure to focus on the present, and not on the mistake you made a few bars back or the hard part coming up ahead!
it depends on your quality of technique though. if you don't have an extremely good technique, focusing on the the sound merely means observing quite how deficient the results are compared to what you can conceive of. I was sincerely tempted to quit out of sheer frustration, a few years back- as all my focus was on musical issues and none of the sounds I achieved were an adequate representation of what I intended. Stepping back from my musical ideals and concentrating on getting simple even articulation with a suitable quality of movement has since made it more feasible to focus on the music result with a reasonable shot at achieving it. To progress I actually had to RESTRAIN myself from thinking about my musical ideals, for the time, and settle for something much simpler and less exaggerated.
Found the above articles very interesting. Yeah my concentration when playing in front if ANYONE (even my wife) is shot. I can't seem to get rid of the thoughts mentioned herein when trying to perform. Thoughts like 'I think I sound ok', 'I think they will think I play well or I am playing this piece well', etc. as soon as I t.hink these thoughts I just play the wrong notes and often at places where I have never made a mistake in practice. I always conclude that I just don't know the piece well enough, but I can play it perfect when alone. It is a tough one.