I've been thinking about this running tool, and I think that a good improvement for next editions could be the possibility to filter bands by their style. It's clear we all know the style of the bands we want to see live, but sometimes, you have some time free ready to fill with a band performance, and there are a lot of bans playing at the same time on different stages. It could be quite useful to know that some band we still don't know (or we can't remember we know them) is playing pagan or trash or anything else just there.
Regards!