In the location's words:

For example, Unter Deck sometimes hosts concerts from Sunday to Tuesday, maybe even on Wednesdays or even Thursdays, but DJs actually play from Wednesday to Saturday, but never on Sunday, unless the following Monday is a public holiday.

Less common are readings or similar events on seemingly random days where someone is speaking. The range of content and music is relatively wide. Private events do not take place as a matter of principle.

You can find out about this program in the calendar if you like.