A xylophone is a musical instrument with graduated wooden slabs arranged like a keyboard that are struck by the player with small, hard mallets. Xylophones are considered percussion instruments and are part of the percussion section in many orchestras, along with drums.
Xylophones create a unique sound. They sound a little like large deep bells would if the sound of bells stopped after the first strike.
If there is a music class in your school, you may have a chance to play a xylophone.