Copy Paste from here:
http://www.exaile.org/forum/viewtopic.php?f=6&t=467
"The feature would likely be its own tab, which shows a list of X number of randomly selected songs, once a song is played, it is removed from the list, and a new random one is appended, this giving you the ability to choose songs you dont wish to listen to ahead, but otherwise have music constantly playing.
The problem stemmed from my over use of the "100 random songs" playlist, which I always trawl before pressing play, to remove the ones I know I wont want to listen to, and the fact that once a list is played, I do the exact same thing again.
Possible options would be pull down boxes to limit randomly chosen music (by genre, rating, etc) and the collection browser on the left to add a song you really feel like listening to..."
Yeah, I'd love that. Amarok 1.4 has this thing, that you can have playlists like this. They combine it with normal and intelligent playlists (plays randomly choosing the songs from the playlists).