True, our responses don't give you an affirmation of your question, but they do help to narrow it down; in the case of my response, since 'Ohana IS, and the Papeete Bay Verandah WAS, a restaurant located along the Seven Seas Lagoon and it does NOT pipe in the EWP music through its speakers during the parade's performance. Of course I haven't been there in 6 years, so maybe someone else who's been there recently could confirm whether or not this is still the case.
So, to summarize, we know that three locations along the Seven Seas Lagoon and Bay Lake do not pipe the music in; all that's left are the restaurants at the Grand Floridian. Can anyone else shed some light on those spots?