Peruvian Shamanic Whistling Vessels. One can also just blow into the vessel, but when water is added in one of the chambers and the vessel is rocked back and forth the shifting air creates an interesting sound pattern. Depending on the construction, diffe

Peruvian Shamanic Whistling Vessels. One can also just blow into the vessel, but when water is added in one of the chambers and the vessel is rocked back and forth the shifting air creates an interesting sound pattern. Depending on the construction, diffe