CadenzaStrong, weather proof and durable, the notes of the Cadenza are arranged as a traditional xylophone or glockenspiel with low to high notes going from left to right. There are no wires or strings as the aluminum notes are individually and securely attached to a high density polyethylene backboard below which sits black anodized aluminum resonators offering maximum vibration with incredible resonance and durability. Each resonator is individually capped