How to post a music post (Updated)

1) Upload your file to the internet.

Easy method: http://encodable.com/uploaddemo/ 
Your file will end up here:
http://encodable.com/uploaddemo/files/Your_File.mp3

2) Embed your file.

<audio controls="controls">
<source src="    Link Here    " type="audio/mpeg">
<embed height="80px" width="100px">
Your browser does not support this audio
</audio>

To download the file, right-click on the player and "Save as audio..." (Works in Chrome).