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Answer:

A string instrument bowed mechanically, with three main elements: a set of melody and drone strings, a resin-coated wooden wheel which acts as a bow, and a keyboard with tangents that bear on the strings when depressed.

In the Middle Ages the hurdy-gurdy (organistrum) was used in the teaching and performance of religious music.

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Contributor: Viper1usmc
First answer by Piano player. Last edit by Viper1usmc. Contributor trust: 3732 [recommend contributor recommended]. Question popularity: 2 [recommend question].