Carla Bley article/interview--
"Q. You started playing at an early age, didn't you?
Carla: At three.
Q. Church music?
Carla: Yeah. One of the first songs I did was "This Little Light of Mine." I would go around afterwards, collecting coins.
Q. Your parents encouraged you?
Carla: I had no choice. They gave me the cup and taught me how to play "Three Blind Mice." That's so weird. I just realized that was the first piece I played in public. Now I've written a very lengthy arrangement of "Three Blind Mice." B flat, A flat, G flat. It was very effective. I got a lot of coins."