As I remember.
Haven't decided yet. I work in radio, myself. So, I'll be developing this and running it by the President before it would ever go live and we could discuss any legalities of the situation and perhaps get my idea funded if we take the proper precautions.
The idea is to use a YouTube API for the music fetching, which allows the music to be streamed just so long as the Youtube video stays visible. But, with this, you also run into the problem with some songs having those long ass intros or intermissions in the video, so I'm working on a way around that, as the only way I know how would be to manually override the YouTube IDs for those videos to instead be linked off to videos without the problem arising.
There's a lot of problems with this becoming a project than originally anticipated, as it could be made very legal, but at a cost of nothing being as automatic as one would like it to be. Lol.
tl;dr, I will be finding a way to make this a full project, but for now we will just be calling it a concept.