- Who
- Christoph Andereggen
- What
- 366 people
- Where
- Switzerland (Zermatt/Gornergrat)
- When
The largest Alphorn ensemble consisted of 366 musicians who played various songs on the Gornegrat mountain near Zermatt, Switzerland, on 20 August 2009.
The event was held to celebrate the 111 birthday of the "Gornegrat Bahn", the mountain railway that is going up the