Hi Paddy. What most people due is to record their song as an audio file to their computer and then convert it to mp3. Then they upload it to their website. If you have a soundcard in your computer, then you would hook the line out of your keyboard into the line in on the souncard. Then you would need a recording program that could also save in mp3 format. I use cakewalk pro audio along which can also save to mp3. I have not yet uploaded anything to the web due to time constrants. Scott Yee has made recordings of his kn5000 and the results are very good. Maybe he will offer some more suggestions.