"music" is also a very broad term. There is complex music you don't even grasp without paying attention and there is music that is designed to get your attentio

"music" is also a very broad term. There is complex music you don't even grasp without paying attention and there is music that is designed to get your attention and start dancing. Music helping with your flow status might be related to it blocking external noise. I have similar results with (some type of) music, earplugs or white noise.