A music box or musical box is an automatic musical instrument in a box that produces musical notes by using a set of pins placed on a revolving cylinder or disc to pluck the tuned teeth of a steel comb. The popular device best known today as a "music box" developed from musical snuff boxes of the 18th century and were originally called carillons à musique. Some of the more complex boxes also contain a tiny drum and/or bells in addition to the metal comb.

A lamellophone is a member of the family of musical instruments that makes its sound by a thin vibrating plate called a lamella or tongue, which is fixed at one end and has the other end free. When the musician depresses the free end of a plate with a finger or fingernail, and then allows the finger to slip off, the released plate vibrates. An instrument may have a single tongue or a series of multiple tongues.