I've been on the awesome concert of "Raz Dwa Trzy" and bought 2 LP's of them and got it signed.
Gosh... they played 2 hours, in such quality that it could be a study recording. With quests on the piano, saxophone and drums.
It was 2003 when I've seen them live for the first time. And they are now even better, celebrating 30 years on the stage.
It's one of the bands on which concert you can go without any doubts.