Monochord
The monochord has been created in Sweden in 1829 for accompaniment of
spiritual singing.
Probably through the Lutheran parochial schools, monochord has got to the
Latvian peasants, and they have begun to play on it, to make it and to improve
it (the same instrument, but with two strings has been developed).

Monochord
Monochord consists of a long, rectangular body, stuck or hammered together from
wooden plates. In the upper plate the sound holes are cut and a stepped rod
(neck) is attached, on which a string (or two) is put.
A horsehair or bow is used to play the monochord. The height of sounding is
changed, pressing the string to the neck.