ESL as well. I think it might have to do with tuning (https://en.wikipedia.org/wiki/Musical_tuning) which is usually done before a concert. So it'd be: ready yourself to make a scene.
Edit: in case anyone thinks I'm trying to sing the gospel of The Christ, then you are wrong. I'm not a Christian. I'm much more in favor of rationality. I'm using the name of The Lord as a kind of "click-bait" if you will. But you didn't realize I as being doubly-sarcastic, so I realize now why I'm being down-voted.
