Rehearsals take place on Thursdays at the locations shown in the rehearsal schedule. (A link to Google Maps for the different locations can be found there as well).
The rehearsal starts at 19.00 for an individual section of voices, at 19:30 the rest of the choir joins for 30 minutes of choral voice coaching (you are expected to participate since this improves the homogeneous sound of the choir), and then the main rehearsal takes place until 22.00.
In addition, you can take private voice coaching lessons between 18.00 and 22.00 with Prof. Carola Keil at the rehearsal location, by signing up in advance.