Some help please

Hey everyone,

My wife and I are excited to be going to our first two shows in Chicago.

Can I ask the following?

Please forgive me for how silly this might sound, but we are coming from a jam band background.

1. What time does the band typically go on stage, and is there an opener? I haven’t read anything online about an opening act.

2. How long do they play, and is it ok to expect a different set at night 2? All the sets that I’ve seen them play online are at festivals and other events. Is it wrong to assume that they will play longer at their own show?

Thank you for the help, looking forward to see you all there and finally seeing the oh sees live!