A simple idea;
Supose you can make a automatic control of what music are being requested more than allowe for a reasonable period.
Plus, this control detects if is the same people, or at least, same IP, same computer, etc
Then, instead of blocking the request, the system just returns a "Normal" request accepted, but, what will happens, is this is turned into a random request for lesser played music.
This way, over request will help us to know more music
