Xylophone

A xylophone is a musical instrument in the percussion family.

Description
The modern western xylophone has bars of rosewood, paduk, or various synthetic materials such as fiberglass or fiberglass-reinforced plastic which allows a louder sound. Some can be as small a range as 2½ octaves but concert xylophones are typically 3½ or 4 octaves. The xylophone is a transposing instrument: its parts are written one octave below the sounding notes. Xylophones should be played with very hard rubber, polyball, or acrylic mallets. Sometimes medium to hard rubber mallets, very hard core, or yarn mallets are used for softer effects. Lighter tones can be created on xylophones by using wooden-headed mallets made from rosewood, ebony, birch, or other hard woods.

Concert xylophones have tube resonators below the bars to enhance the tone and sustain. Frames are made of wood or cheap steel tubing: more expensive xylophones feature height adjustment and more stability in the stand. In other music cultures some versions have gourds that act as Helmholtz resonators. Others are "trough" xylophones with a single hollow body that acts as a resonator for all the bars. Old methods consisted of arranging the bars on tied bundles of straw, and, as still practiced today, placing the bars adjacent to each other in a ladder-like layout. Ancient mallets were made of willow wood with spoon-like bowls on the beaten ends.