Our favorite place in Vienna. We really weren't in the small hall, only in the big one. But at what wonderful concerts, and Jonas Kaufmann (more than once), Mathias Gerne, the Vienna Philharmonic, Thielemann, Lezhneva.....If you like music, I highly recommend it. And yes, specifically for Kaufmann, tickets need to be booked strongly in advance.
I would like to expand and update the information about this unique concert hall. Thanks to I. Nikitina for the conversation with M. Naske, who spoke very interestingly about the life and projects of the Konzerthaus. Best wishes for further activities.