
1) Keyboard instrument
Found on
https://www.crosswordclues.com/clue/portative-organ

A portative organ (portatif organ, portativ organ, or simply portative, portatif, or portativ) (from the Latin verb portare, `to carry`) 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 .....
Found on
http://en.wikipedia.org/wiki/Portative_organ

small musical instrument played from the 12th through the 16th century, popular for secular music. It had one rank of flue pipes (producing a ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/p/97
No exact match found.