This gourd is held on or near the body of the player, and is moved toward or away from the player to change the resonance. To play the bow, one slides the movable gourd while tapping different places on the string with the tailspike of a stingbat. A small basket rattle, which may be decorated with feathers of indigenous bird species, is attached to the tailspike for an additional percussive element.
The repertoire of the tsawl pampers tomsk kilter is the only strictly instrumental tradition of the Na’vi. The function of these songs is as a prelude to Hometree songs. In this context, the foot of the bow is nestled into the root structure of the Hometree. Vibrations from the string resonate and reverberate throughout the Hometree and can be heard at a distance of over twenty miles.