I sing in Chalmers sångkör. Information about upcoming concerts on the choir homepage.
Choir of the Ostrobothnian nation at the University of Helsinki. I was the chair for 1.5 years before I ran away to Sweden. The picture below is from our choir trip to Mallorca in 2013.
Choir of student organisation for Asian and African languages and cultures. Founded by people who wanted to sing in Asian and African languages. Some example songs: