Not musically talented at all myself…just envious. One of my best friends is a professional pianist. All I could play before that was chopsticks, so she taught me basic fingering. I also can’t read more than basic music, but I have been her “professional” page turner at times. She has a secret coding system for me that she developed. She came up with it when we were in college, so that I could get a few free meals when they performed off campus. She was so good that no one was aware that I couldn’t read music. We also had horrible on campus food, so it was a lifesaver.
I recognized it because I’m an old movie buff and they use that tune a lot.