Considering the Euro Hotel Passau in Passau?
A VT member wrote the following comment about visiting Passau:
Listen to the largest church organ in the world! by phil_uk_net
St Stephans Cathedral houses the worlds largest church organ which should be heard as well as seen! Recitals are given at lunchtime on weekdays and evenings. I went to a lunchtime concert which is given between 12 and 12:30 Monday to Friday. Doors open at around 11:20. The recitals are popular with tourists and fill up quickly. The entrance fee is 3 Euros.