The educational week The mountain calls for alphorn players focuses on making music together in an alphorn ensemble three times a year. For five days, a repertoire is worked on and the basics of alphorn playing - breathing, embouchure, tone formation and intonation - are refreshed and deepened using pieces of different styles. In addition, instrument-specific features are addressed and new literature and impulses for practicing at home are provided. Excursions and concerts in the southern Black Forest region, where