Anecdotally, that sounds about right to me. I typically like to program while listening to music. This is fine as long as the logic flow is straightforward. If it's something simple I can listen to anything. If it's moderately complicated, I'll switch to something without lyrics. If I get to something really challenging, like having to reason about race conditions or how the program is going to recover from a sudden power outage, then the music needs to stop entirely so I can focus.