help

So, I have a Mac, and no access to other computers, and don't actually know what programs I can get on my Mac. I could search download.com, but for one thing my internet is slow, and for another there are different kinds of viruses here in China. My problem is: I have a song I need to learn, in WMA form, and I need it in, for example, mp3 or mp4 form. Is there anyone who could convert it for me if I were to send it to him/her?

(this will be asked of HRSFA if nobody answers soon...)