Not just DRM free … but totally free (probably as long as you listen to it from a web page).
Now this model is the same as the one I am in the process of implementing: see this post.
Well, my model isn’t totally ad supported … there are also tips (donations) and other things in there. I dont want to rely entirely on ad support.
… and with Google Adsense suspending accounts without any explanation, I feel even more inclined to avoid ad supported content. Maybe now is the time to try Yahoo ads.