Body & Structure:
* Wood: Typically, the outer case and internal frame are made of wood like mahogany, rosewood, or pine. This provides structural support and acoustic properties.
* Metal: The bellows, pedals, and some internal components (like the reeds' support) are made of metal, usually brass, steel, or iron.
Sound-producing Elements:
* Reeds: The most important part of the harmonium are the reeds, thin metal strips that vibrate to create sound. They are typically made of brass or bronze.
* Reed Pan: This is a metal frame that holds the reeds in place.
* Soundboard: A wooden or metal plate that amplifies the sound produced by the reeds.
Other Components:
* Bellows: Leather or rubberized fabric is used to create the bellows that pump air through the reeds.
* Keys: Ivory, plastic, or wood are used for the keys, which control the reeds.
* Pedals: Usually made of wood, pedals pump the bellows.
* Stops: These are levers that control the different sets of reeds and their combinations.
Overall: The harmonium is a blend of wood, metal, leather, and other materials, all working together to produce its unique and expressive sound.
