This would be very handy indeed.
When you go to widgets on appearance you should be able to drag a audio player widget to your sidebar, and it asks what audio file you want, so you click browse and you pick a file, then choose options like play automatically when someone visits site and make music loop.
This is a good simple idea.
Fin1002
The blog I need help with is fin1002sclubpenguinblog.wordpress.com.