Music box

A music box is a self-playing musical instrument that produces sounds by using a set of pins placed on a rotating cylinder or disc to pluck tuned teeth (or lamellae) of a steel comb. The comb's teeth are each precisely tuned to produce a specific note.

Operation typically involves a spring-wound mechanism that powers the rotation of the cylinder or disc. As the cylinder or disc turns, the pins catch and release the teeth of the comb, causing them to vibrate and create a melody. The arrangement of the pins on the cylinder or disc determines the tune that is played.

Music boxes were popular from the 18th century through the early 20th century, representing a significant advance in automated music technology. They were primarily luxury items, often housed in ornate cases made of wood, metal, or other decorative materials. Early music boxes were large and complex, but over time, smaller and more affordable versions were developed.

The development of the phonograph and other recording technologies led to a decline in the popularity of music boxes as a primary source of home entertainment. However, music boxes remain popular as collectible items, nostalgic trinkets, and components in toys and novelties. They are also valued for their craftsmanship and intricate mechanical design. Modern iterations sometimes incorporate electronic components to enhance or replace the mechanical components.