Can I sort by city or venue?

Yes, from the drop down menus you can pick a single venue/city or any combination of multiple venues or cities.

I don’t like the calendar view, can I change it?

Yes. On a mobile phone the default view is Agenda. To change to a different view click on the icon next to Agenda and choose another view from the drop down choices.

i heard my favorite band is playing in town this weekend, how do I find out where? 

In the search box on the right below the slider, type in the name of the band, all or part.