I think you're on to something here. I was an avid musician as a pre-university student. My (obviously super scientific) data point suggests to me that as a dec

I think you're on to something here. I was an avid musician as a pre-university student. My (obviously super scientific) data point suggests to me that as a decreased music rehearsal/learning through university, my academic performance tracked with a strong correlation. My academic high-point was probably the semesters in high school / secondary school where I had 3-4 hours of music instruction and practice per day.