You play the first thing that comes to your mind.
But at the end, for some unexplainable reason, you suddenly play something different.
B: What was this?
KXA: Different version.
B: But why?
KXA: I don't know.
B: Can you play it again, without changing anything?
KXA: No. Too late. I already changed.
B: I would like to hear the original version.
KXA: In this case you will have to play it with your own hands.
B: You know that I'm not that good at this finger dance.