The cat’s face has two tuned arrays of metal tines, one short and one long. The tines are plucked in different ways to bring out different modes of vibration, and each mode has its distinctive tone quality. In the short array, the prongs have wire-loop rattles to add a glittery edge to the tone. Originally the soundboard of the cat’s face was mounted on a polystyrene sound box. That’s now gone, and it’s equipped with a pickup instead. You can read more about the most unusual of the Cat Face’s vibratory modes in the bass cat’s face page in this collection.
The audio clip features the Cat’s Face with just a tiny bit of added color from a marimba. A video of this instrument can be found among the demonstrations in this youtube playlist.