add a new option for festivals: Stages.
I just went to Groezrock last weekend and figured it'd be pretty nice to add stages to festivals. Just a little optional feature to indicate if a show was played on the main stage, acoustic stage etc.
Perhaps even time-schedules to go with the stages. E.g.: Band X played the Main Stage from 1.00-2.00 and so on. Both would be optional features.
Why do I think this is nice? Well, I am currently adding the @Set["Stage name here.] before each festival show since it's pretty handy to know.