Hi,
You mean on the listing of products page ?
So it would be played during the redirection to the product page ?
Or are you talking about playing the MP3 on the product page each time the user clicks somewhere on the page ?
Or only when clicking on the add to cart button ?
While there is no ready made solution to do this by default, it sure would be possible for a developer to add some custom code, via a view override or a plugin to do that. What to do exactly depends on where and when it should happen.