I use grooveshark. usually listen to reddit's 90's playlist, or anything with warren haynes and joe bonamassa. If someone integrated a contextual playlist gen

I use grooveshark. usually listen to reddit's 90's playlist, or anything with warren haynes and joe bonamassa. If someone integrated a contextual playlist generator into a web-IDE and changed the music based on length of current session, degree of nesting or other complexity values, time of day based on location, etc..., I think it would be a much appreciated feature. EDIT: Has anyone built this yet?