Play mp3 in Codea

Hi, I have found an mp3 file to use as background music in the game I am making…

I checked the docs and found nothing…how can I play this mp3 in Codea?

I do not believe you currently can. But you can import into xcode with the codea runtime (and upcomming xcode export) and achieve this.

How easy/hard is it to add the music using the runtime?

Using this codea program you can add music to your app
http://twolivesleft.com/Codea/Talk/discussion/225/abcplayercodea-play-music-in-your-project/p1