The tonality of each striking surface has been fine-tuned to ensure versatility and expressive power by varying the thickness and number of plywood layers. The resonant cords are snare wires, typically found on a snare drum, which deliver a crisp sound and quick decay. The resonator tension can be adjusted at both the top and bottom of the striking surface. For example, you could tighten the lower pitches and loosen the upper pitches so that different tones are produced when you strike different places. Additionally, the front surface is coated, allowing for the use of a brush to deliver maximum playability and expression.