@jabsonik Jabeerwocky in ulica Traugutta seems to be popular lately. There's also Browar Księży Młyn, but I haven't been in there, but it looks nice from outside.
Czesky Film used to have Klezmer music on some evenings.
Manufaktura has a lot of happenings all the time (just yesterday they had a Cuban music festival)
For most things you will have to look at Pietrkowska, that's the entertainment mile. And in August I think there's gonna be lots of stuff happening in the evenings.
One of my very favorite New Orleans bands, the New Orleans Klezmer All Stars, have a new LP out next month. If you ever have an opportunity to see them live, you will not be disappointed. Incredible energy and just a non-stop dance party. #Jazz#Klezmer#NewOrleans