Thank you very much all for your concerns and support!
My dad and I have always been close. Heck, we even jammed quite a few times ourselves, can't get any better than that! (of course, he always balk at my constant use of 'transpose' button
)
Ironically- he's not a drinker, not a smoker (haven't done so in the last 25 years), eats healty- perhaps too healthy, etc..
But now he's doing quite well and still enjoying his rests and have more time for his KN7000 and Tyros at home! Dang!
Thanks again guys for all your support!