This kinda sucks. I sat around for about 45 minutes today letting the game choose my set list and not once did a RBN song come up. I didn't play any songs, I just let the game pick and then I'd look through the list to see if any RBN songs were in it. I'd then remove all the songs and start again.
I've purchased 76 RBN songs and I'll probably never really get the chance to play them solo. When I'm playing the game alone, I do mystery set lists or random songs. I have well over 1,000 songs total and the only way it stays interesting playing solo is by the surpirse of not knowing what song is coming next. Only thing I do know is that the next song will not be a RBN song.
Unfortunately, this means I will not be buying any more RBN songs unless there is something I really, really want.