By the time a piece of music is heard, most of the work has already been done. The decisions, the adjustments, the refining of small details that shape the final result. It’s not always visible, but it’s always there.
It’s the time spent listening back, not once, but repeatedly. The small changes that most people won’t notice individually, but would feel immediately if they were missing. The discipline to step back, rework and refine until everything sits where it should.