Portative organ

A portative organ (portatif organ, portativ organ, or simply portative, portatif, or portativ) (from the Latin verb portare, "to carry"), also known as the organetto, is a small pipe organ that consists of one rank of flue pipes, sometimes arranged in two rows, to be played while strapped to the performer at a right angle. The performer manipulates the bellows with one hand and fingers the keys with the other. The portative organ lacks a reservoir to retain a supply of wind, thus it will only produce sound while the bellows are being operated. The instrument was commonly used in secular music from the twelfth to the sixteenth centuries.