But the physical tension is also a reality. If you can "unhook" the physical habits from stressful situations, with stressful situations being the *learned* trigger, and replace it with relaxed physical habits .... two handles?
Looking back it was a horrible experience, I realized since then that pianos are ALWAYS miced on a jazz performance. And I was not ready to play that loud in the first place. those expereince seems to be affecting my playing still, as if somehow i am conditioned to play like that even now.