Today's Piano Puzzler

From the archives.  This week's contestants are Nancy Parton and Ron Morebello from San Diego, California.  At least I got the composer style, but didn't have a clue on the hidden song -- which is really deeply hidden.  I was even listening in the right place for it, but couldn't hear it.  I even listening closely when pianist Bruce Adolph said where to listen, and I had been listening there, and he slowed to down to be more clear.  Zero idea. Even when he gave the answer and I listened again, I had a hard time picking it out.  But...it's guessable, because the contestants got it on the second time around.  Not me...