A fixed-key balafon, showing resonators with membrane holes.
The balafon is a resonated frame, wooden keyed percussion idiophone of West Africa; part of the idiophone family of tuned percussion instruments that includes the xylophone, marimba, glockenspiel, and the vibraphone. Sound is produced by striking the tuned keys with two padded sticks. Believed to have been developed independently of the Southern African and South American instruments now called the marimba, oral histories of the balafon date it to at least the rise of the Mali Empire in the 12th century CE.