The feature you are talking about is integrated into the new Yamaha arranger keyboards, I think they call it "music database" or "song database" it actually has song names, you choose a song, and the "proper" patches/voices and effects settings are automatically loaded into the keyboard for you to play.
As far as I know, none of the Roland equipment that are subject of this forum (XV and JV soundsets) do such a thing, these Roland units are more geared toward the professional musician or serious, experienced home hobbyist, who knows how to choose sounds for songs easily.
so perhaps you should look into a yamaha PSR 550, PSR 1000, or PSR 2000, or the TYROS, these range in price from $500 to $3000.
Check the "arranger keyboard" section here at synth zone, or join the Yahoo PSR songs group at
http://groups.yahoo.com/group/yamaha-psr-songs/ Hope that helps,
Cathy