I sometimes have trouble even with beats/pulsing - that can break my concentration at times. I use non-vocal jazz or electronica stuff, but mask with brown/gre

I sometimes have trouble even with beats/pulsing - that can break my concentration at times. I use non-vocal jazz or electronica stuff, but mask with brown/grey noise on top, and that seems to be the best mix, but I find when beats are too noticeable... I notice them.