Music whilst working

I noticed when my mother works on her curtains she sometimes has Radio BBC2/4 on and other times not.

I asked her why is the radio off now? She says she needs to concentrate. She has it back on when the job gets routine.

That’s the way I feel about it too. I never quite understood how programmers can work with music. If you’re working really hard on a problem, best have the music off with no disturbances.