- Xylophone: A musical instrument consisting of a set of wooden bars of different lengths, each tuned to a specific pitch. The bars are struck with mallets to produce sound.
- Marimba: A musical instrument similar to the xylophone, but with wider, thicker bars made of rosewood or fiberglass. The bars are suspended from a frame and played with mallets.
- Vibraphone: A musical instrument consisting of a set of metal bars, each tuned to a specific pitch. The bars are suspended from a frame and played with mallets. The vibraphone has a motor that rotates two discs with holes in them, creating a vibrato effect in the sound.
- Glockenspiel: A musical instrument consisting of a set of small metal bars, each tuned to a specific pitch. The bars are struck with mallets to produce sound.
- Chimes: A musical instrument consisting of a set of tuned metal tubes or rods, suspended from a frame. The chimes are struck with a mallet or by pulling on a cord to produce sound.
- Timpani: A musical instrument consisting of a set of large, single-headed drums of different sizes, each tuned to a specific pitch. The drums are played with large, padded mallets.