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Portative organ

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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 European secular music from the twelfth to the sixteenth centuries.



The portative is constructed simply in order to make it as portable as possible. The pipes are arranged on a small rectangular windchest and supplied with wind by one or two bellows placed at the back, in front or at the right side of the instrument. The row of pipes is supported by posts at either end and an oblique bar. The simplest style of keyboard on the portative consists of one slider for each pipe. When a slider is pushed in, the corresponding pipe sounds. The slider is restored to its normal position by a horn spring. Some instruments use the reverse of this action, with keys featuring knobs or handles.


In principle, the portative is a smaller instrument than the positive organ, which features more ranks of pipes and a larger keyboard. The portative also should not be confused with the regal, a small keyboard instrument that contains a rank of short-length reed pipes instead of flue pipes.

In practice, however, since the Orgelbewegung revival of small organs, also small positives with a bass register and played with both hands have come to be called portatives, especially when their pipe arrangement or general layout resembles that of the genuine portative. One of the most well-known modern proponents of that kind of 'large portative' organ was Dolly Collins, who accompanied her vocalist sister Shirley Collins on many albums of traditional English folk songs.


Towards the middle of the thirteenth century, miniatures of illuminated manuscripts depict portatives with modern, balanced-action keyboards. An example can be seen in the Spanish manuscript known as the Cantigas de Santa Maria, which contains fifty-one miniatures of instrumentalists. It is evident from the position of the organist's thumb in these miniatures that the keys are pressed down to make the notes sound. There are nine pipes and nine keys, which is sufficient for a C-major diatonic scale of one octave with an added B-flat.

These medieval portative organs, so extensively used during the 14th and 15th centuries, were revivals of those used by the Romans, of which a specimen excavated at Pompeii in 1876 is preserved in the Museo Archeologico Nazionale Napoli. The case measures 14½ inches (36.8 cm) by 9⅓ inches (23.7 cm) and contains nine pipes, of which the longest measures only 9¾ inches (24.8 cm); six of the pipes have oblong holes at a short distance from the top similar to those made in gamba pipes of modern organs to give them their reedy quality, and also to those cut in the bamboo pipes of the Chinese sheng, which is a mouth organ furnished with free reeds. From the description of these remains by C. F. Abdy Williams, it would seem that a bronze plate 11½ inches (29.2 cm) by 2¾ inches (7.0 cm) having 18 rectangular slits arranged in three rows to form vandykes was found inside the case, with three little plates of bronze just wide enough to pass through the slits lying by it; this plate possibly formed part of the mechanism for the sliders of the keys.

The small instrument often taken for a syrinx on a contorniate medallion of Sallust in the Cabinet Impérial de France in Paris may be meant for a miniature portative.


Portative organ Wikipedia

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