Said to be inspired by the Chinese feng shui tradition of hanging bells on doors and windows to act as simple, common sense safety alerts, wooden door harps are of Scandinavian origin going back about 700 years.
Tunable if you've got that knack, they usually have 3 or 5 strings. Mounted on the inside of your front door, the instrument serves dually as art sculpture while gently chiming as you or guests enter and leave. The soothing song adds an inexplicable feeling of warmth and assurance to homes. And they make unique home warming and wedding gifts.