Whistling pot

Whistling pot (Fr.: vase siffleur; Sp.: silbador), a form of globular flute of ancient S. America, consisting of 2 communicating clay vases partly filled with water. When the player blew into one pot, water was driven into the second, where the increased amount compressed the air and sent it out through the whistle head. The blowhole was placed at the top of a narrow neck. Double whistling pots also existed; they produced 2 sounds simultaneously. Whistling pots were used from El Salvador to…