YOUTUBE HAS A LOOP BUTTON LEGIT.

I DIDNT KNOW. UNTIL NOW. 

JUST RIGHT CLICK YOUTUBE ON YOUR COMPUTER IF THATS WHAT YOU USE AND THERES A LOOP BUTTON. YOU GOTTA RIGHT CLICK YOUR VIDEO. SO GO AHEAD NOW AND ENJOY THAT SONG THAT YOU COULD LISTEN TO HOURS ON END FOREVER WITHOUT HAVING TO REPLAY THE SONG OVER AND OVER REOPENING YOUTUBE OVER AND OVER.