Hi there, it’s actually possible to link to audio files in the pro version or the free version. You can put any shortcode in the “More Info” area. like this:
[embed src="http://cdn.5by5.tv/audio/broadcasts/b2w/2011/b2w-001.mp3"]
That’s the standard WordPress audio player, but you can also put any 3rd-party audio player/plugin in there too. Most browsers will not let you do auto-playing video in this case (particularly on mobile devices), but it would be easy to put the player in and let the visitor click to play the audio.
Hope that helps, let us know if you have any other questions!
Thanks,
Nathan