Add MP3 to your blog

As explained here
just add a bit of code:
<iframe style="border: 1px solid #aaaaaa; width: 100%; height: 25px" id="musicPlayer" src="http://mail.google.com/mail/html/audio.swf?audioUrl=MP3_URL"> </iframe>

And the result will look like this:


It is an Stabat Mater I found here. The link to the MP3 file is:

http://www.musikethos.org/mp3/Patrizia%20Bovi/01%20Stabat%20Mater.mp3

This is the HTML with link filled in:
<iframe style="border: 1px solid #aaaaaa; width: 100%; height: 25px" id="musicPlayer" src="http://mail.google.com/mail/html/audio.swf?audioUrl=http://www.musikethos.org/mp3/Patrizia%20Bovi/01%20Stabat%20Mater.mp3"> </iframe>