This is a very small, but nice news. There's a student club that regularly gives out tickets for various cultural events in Prague. I think this is mainly done so that students go out more often to various museums, theaters, concerts.
A few days ago I received my first tickets - for a concert of classical music. I'm actually not very familiar with this type of music, so I was even more interested to attend. The concert left a very positive impression - I especially liked the drum performance. But already before intermission I started falling asleep from fatigue :) By the way, the concert was held in one of the halls of the Rudolfinum.
To participate in giveaways, you need to register on the site, then receive emails from them, choose the most suitable event and click that you want to go. Usually 2-3 days before the event they notify winners - who gets tickets. By the way, there's a separate category of events from museums - free entry to them. So there's plenty to choose from!
The club is affiliated with Charles University. Although I don't know if you can participate if you're from a different university.