The XAD Alto Diatonic Xylophone permit the pre-teen student to enjoy the thrill of performing on authentic instruments. The wide bars Rosewood keyboard, perfectly balanced and harmonized to eliminate dissonance, provide a great and powerful sonority. Prime, high density and removable Rosewood bars are aged of 5 years at least, for precise control of moisture content, thus insuring the long-term accuracy of tuning and pitch, even in humid climates. This range of Diatonic Xylophone include resonator box interior, especially tuned and designed for optimal and equal resonance. We also add a built in mallet storage and two special yarn mallets.