no details other than my question.
Ok, a couple of questions
Can you hear sound fine on other pages?
Can you tell me what method you used to add the sound on your freewebs site?
I have visted your page and I can hear the file play fine, but might I suggest lowering the bitrate from 128kbps to 64kbps to help improve load times.
Edit: A bit of tinkering and I've found that QuickTime plug-in works for your page:
There is not MIME type specified for the MP3 file and in that case you can probably only play the file with QuickTime as posted above.
You can add a type="application/x-mplayer2" attribute to make Firefox use the Windows Media Player to play the file.
<embed src="http://www.freewebs.com/theprettyladyartgallery/BACH AIR ON G.MP3" autostart="true" width="70" height="24" loop="true" type="application/x-mplayer2">