@eirene_belle: How will you manage on the mountain? Do you think you can yodel? Yodeling evolved in the central region of Switzerland in rural Alpine communities as a vital form of communication. It was used to call to cow flocks. But more importantly, it was used to communicate from village to village and mountain to mountain, for communities separated by deep Alpine valleys and rugged terrain. Yodelers were calling from hill to hill. It has evolved over the centuries to become an art form in the choral tradition. As the pragmatic call turned into an art form, natural yodeling became the norm. A prime singer improvises and others join in the harmonize, sort of riffing off of the leader. Sometimes bells are used.