if you want to keep hearing it again you can each time
click the mouse on the very starting point of the track seek bar.
and the seek bar moves back to the begining only you need to do that before the song finishes like one second left to go on the timer. click the timer and it goes to and from positive or negetive counting. you can see just when to click it then.
as far as i know i have not seen a script to repeat a single song. i have not looked in the script room for a day or so.
you might look and find one. you could also just play one song
in the playlist and have continous on and it will play over and over.