- If I come across an artist that I have 5, or more files, it would not play any music...

Let me get this straight, you actually want your empeg to be silent? And assuming the feature existed, it sounds like more work then necessary. So I will repeat myself. My player has sublists of artists under each main playlist (genre). This way I can listen to a genre, but if I want to stick to an artist, then I just use Tweak Order to get the artist I want to hear to appear next for a song or two, or more. Once those are done playing, it will continue on playing the other stuff that's still in memory. And as for escaping the feature, well, Tweak Order doesn't find every song and inser them before the next song that's not by the artist you want right now, so escaping isn't necessary. Much less work.

In my opinion, that is a much easier way to go about accomplishing what you want. But it would require that you have Artist playlists inside your Genre playlists.