If you’ve ever been to a theater production, and then gotten to meet any of the actors up close, you might have been shocked by their makeup. You don’t notice it much when they are on stage, but up close it can be pretty extreme.
Stage actors need strange-looking makeup because they perform under bright lights, which can wash out their features. And they need their facial expressions to be unmistakable to audience members, even in the very back row. Their special makeup techniques, which look unnatural up close, help them look natural and communicate visually under the unusual circumstances of a stage production.
Musicians need to take this same approach. If I practice a piece of music in a small room, subtle dynamic contrasts seem like plenty. But in the very different situation of a performance, in a large and reverberant concert hall, those nuances can disappear. I need to go bigger, stage-makeup-style.
That means practicing my music in ways that sometimes feels over the top or even a little obnoxious. But on stage or in a recording it will probably be just right—my sweeping, melodramatic dynamic contrasts will come across as natural and tasteful.
Don’t be afraid to go big on dynamics!