Singing was full of hidden passageways, and sealed-up staircases, and secret rooms. Most of the time I couldn’t find them, but once when I was doing scales a roof lifted off and my voice jumped an octave above anything. It was off the piano completely, and I sailed for a second above the city of singing. I didn’t know how it had happened and I was never able to do it again. It had come from the other side of the world.