Are you familiar with an idea of Sofar? You book a ticket for a music event whithout a lineup, based in a secret location (which is revealed the day before). The atmosphere is very cameral, with lots of fairylights and people sitting on the floor. You can't predict the genre of music. All you have to do is grab a drink and a friend and stay open. Sofar events are available around the world (Poland included). Give it a try!