Sang Alpine Songs refers to the traditional style of singing known as yodeling, which is characterized by its rapid changes in pitch and melodic contours. Yodeling originated in the Alps, a mountain range in Europe, and is still practiced today in many parts of the world. It is often used in folk music and is also popular in country music. Yodeling is a form of vocal expression that has been around for centuries and is still enjoyed by many people today.