This is a Google Reader MP3 Player that you can use on any website and autoplay if you wish. Just use the embed code below & replace the MP3_FILE_URL with a direct link to your own MP3 and your good to go. It doesn’t have any Google branding which is nice, has volume controls & shows the duration of the file.
<embed type="application/x-shockwave-flash" flashvars="audioUrl=MP3_FILE_URL" src="http://www.google.com/reader/ui/3523697345-audio-player.swf" width="400" height="27" quality="best" wmode="transparent"></embed>
Here it is in action:
If the flash file it links to in the embed goes down your out of luck. But luckily if you download the audio player swf file and link to that instead it will work.
If you want the audio file to autoPlay, add autoPlay=true to the MP3 file URL like so: