Speaking about intuitive tuning I have noticed that as a singer, whenever I am singing something without having played my keyboard first... when I finally go to play along with it, my voice is definitely slightly flatter than 'concert picth'. EVERY TIME. I put this down to the A 432 tuning issue. One can't help but wonder if this is related to the fact that all the sound work, chanting etc I have done has tuned me into what is natural and right for my body. Sometimes I just detune the keyboard to A 432 to feel at home when writing.