Swiss singer, perhaps

• Alpine singer, perhaps
• Old-time country singer, sometimes
• Peak performer?
• One making frequent pitching changes?
• Singer heard in the Cliff Hangers game on "The Price Is Right"
• Alpine show-off
• Jimmie Rodgers or Tex Owens, musically
• The lonely goatherd, in a "Sound of Music" song
• Alps man, at times

Wiktionary Word definitions in Wiktionary
n. One who sings so that their voice fluctuates rapidly between their normal chest voice and a falsetto, one who yodels.