This rehearsal room stands out with its coffered wooden ceiling. The oiled parquet floor is covered with two moveable carpets. The windows offer a wonderful view of the Rhine and the unspoiled nature on the German side of the river. The single window on the east side, with its view of the Rhine terrace, adds to the attractiveness of this room. The sandstone niche dates back to the monastery period. In this hall seminars with up to 60 participants can be held.