Related Clues:

• Song often sung with an echo
• Alpine air
• Serenade Heidi?
• Mountain music
• Tyrolean melody
• Sing cowboy songs, maybe
• Alpine melody
• Swiss air
• Holler in the hills
• Refrain from the mountains
• Alps song
• Produce some cliff notes?
• Call across vales
• Sing like Slim Clark
• Song accompanied by an alpenhorn