The 1990 study that a graduate student Elizabeth Newton did. May we get reenact pieces of it for ourselves or for listeners. The tappers think that the other side is going to get it. Most of the time, and the other side gets it basically none of the time. It's pretty straightforward when you're tapping out the song,. You don't just hear the tapping when they're tapping out jingle bells, you hear the bells ringing andYou hear the melody. And I have the actual numbers in the piece but basically the tapper thinks that the other person is going to know which song you're tapping.