GH III DLC to Work in GH: World Tour (ie GH4)

[Valkyria00]

Awesome BUT I dont even own any of the previous once so it not a factor to me.
Im buying GH:WT for Wii and fuck RB for that shovelware shit they gave the Wii.

I dont see a reason to buy RB 2. I guess if you like the set list....I dont.