This question can be taken a couple different ways, and I want to address both of them. We ought to make sure our musical worship is orderly and not chaotic, and the music that we sing ought to follow a certain order.
"Let two or three prophets speak, and let the others weigh what is said. If a revelation is made to another sitting there, let the first be silent. For you can all prophesy one by one, so that all may learn and be encouraged.... For God is not a God of confusion but of peace." (I Corinthians 14:29-33)