Maybe the fundamental difference is that with a dj or even a producer you can't just download an album and see how they sound: the actual set will probably be u

Maybe the fundamental difference is that with a dj or even a producer you can't just download an album and see how they sound: the actual set will probably be unique, and in tune with the party. And yes I do want to know vaguely how it will sound. Ok, now we're getting somewhere. Thats a very interesting point, thanks.