yodelophone
The yodelophone is a musical instrument that produces sound through the controlled expulsion of air. It is characterized by its distinctive tonal quality, often described as reminiscent of a yodel. The instrument typically consists of a mouthpiece, a resonating chamber, and a mechanism for altering pitch. This mechanism can vary, but often involves valves or slides that change the effective length of the air column.
The origins of the yodelophone are somewhat obscure, with similar instruments appearing in various folk traditions.