BTW something I forgot to add in the original post, is my theory about how listening to country music makes you dumber.
My theory is if you take a bunch of lab rats and run them through mazes, their time will be slower while country music is being played compared to a control group of rats with no music playing. This might be intersting to compare times for all genres of music, but I still think the country music rats would have the slowest times. IMO.