This article is by a music producer and he shares a tip for when the final mix of a piece of music is being completed. He has found that using a distraction, in this case an un-muted TV allows him to pick up on what may be missing from the mix. He believes that this is a real world test of the music, since people are generally listening to music while doing something else.
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When printing a mix, I’ll often go to small speakers at low volume.