yesterday or the day before yesterday some music i heard it doesn't sound like how i remember it i don't know how to describe it still sound the same but it kinda sound either a bit tone down or low pitch but it sound like lets take one of my favorite game contra when it was ported in europe the soundtrack of the game sounded like a bit i don't know how i describe it but a website where i could change the old games region and i clicked PAL it sounded like the same from europe son i described it as my hearing it's either my brain,ears,memory or mind or after my surgery or the pill what my doctor recommend for me to use or others.