When it comes to actual MUSIC, I cannot carry on the simplest of conversations when I am playing. When I open my mouth when playing I am as likely to get a meaningful word out as I am to just drool somewhere...
geez I can yack up a storm these days... years of cocktail piano... It doesn't seem to matter if I am reading or improvising or whatever my hands just go on playing. I am fully aware of what my hands are doing and I am listening but at the same time I could discuss the Rise and Fall of the Third Reich if that was the topic of conversation. It wasn't always that way... I, too, could not utter a word while playing. Then it was like all of the sudden I could... only took approx. 25 years... give or take ...but who's counting.
I have given up on trying to speak when I play now. Even when I gig in a cover band from time to time - forget about it. People come up to me with requests "Do you know Achy Breaky Heart?" I cannot even muster the ability to tell them to go jump in a lake.
oh I can relate to that. I play solo piano gigs at a restaurant... they come up and ask me all kinds of questions...lolachy breaky heart... I used to play in a big band that did that... but the title was scratched out on the lead sheet and instead it was replaced with... "itchy, twitchy, tw#t"--still can't hear that song without thinking about that.