Help--Loop through mp3 playlist

hello again!

I would like to loop through 3 songs playing in the background on my website. So far I have a music control that the user can click and the next song will begin to play. The site opens with song 1 and keeps repeating, never going to song2, or song3. But, I would like the songs to begin without user interaction, song1, then song2 and then song3, song1, song2… etc.

How can I achieve this??