Oh Man!
Found this thread where jay_man2 had the answer that worked for me.
I can’t thank you enough. After scrolling thru what seems like hundreds of settings I found “Sounds and Hepatics” > Keyboard Clicks and Lock Sound.
I disable those because none of the other hundred or so settings seemed appropriate.
Voila! I just have my fingers crossed that it’s not just a teaser.
TVM!