monochord

/mon-uh-kawrd/US // ˈmɒn əˌkɔrd //UK // (ˈmɒnəʊˌkɔːd) //

单弦琴,单弦,单弦波,单弦管

Definitions

n.名词 noun

1
- : an acoustical instrument dating from antiquity, consisting of an oblong wooden sounding box, usually with a single string, used for the mathematical determination of musical intervals.

In the eleventh century, when musical notation came into being, a monochord was used to teach singing.
One of the instruments which brings the child to producing and recognizing notes is the monochord.
The monochord has a movable bridge, therefore some time is lost in adjusting it in order to get the different tones.
And he remarks, respecting those proportions, that they are similar to the harmonic divisions of a monochord.
The principle of the action remained that of the old monochord.