Recent posts have examined the structural and musical attributes of a variety of zithers. They include a few that were derived from the concert zither but little has been said about the parent instrument. It originated through a fusion of Alpine designs and is still used in traditional contexts.
The melody is played with the thumb alone, which nearly always plucks the strings from the same direction. The speed this can attain is seen in a classical work arranged for the same basic ensemble. The use of the left hand to “hammer on” notes seen at the outset of the performance will be discussed further below.
In contrast to the single strings of the concert zither, the hammered dulcimer next to it in the first video has multi-string courses. It is sometimes played by plucking the strings directly with the fingertips (fueling debate about formal nomenclature and classification). This is the basic technique of another member of the zither family seen in previous posts; the qanun. It also has multi-string courses and the index fingers wear fingerpicks. The important thing to note in the following demonstration is the single targeting of the top string in a course.
Toward the end of the 19th century mechanical devices began to proliferate on zithers. Most of them were short lived, if marketed at all, but a few came into persistent use. One of their purposes was to enable a sequence of strings tuned diatonically to a given key to be shifted into others. Although this can obviously be effected simply by retuning the strings, for example, altering a G major scale to D major by raising all C strings to C♯, rapid changes require a more nimble auxiliary device.
Corresponding mechanisms were applied to chordal string arrangements, altering a block of strings from one type of chord to another. This was illustrated in the preceding post with a Swedish harp zither patented in 1886 by Adolf Larsson, equipped with a mechanism for shifting each supported major chord to the parallel minor or a seventh. This post’s banner image comes from a German patent (no. 266371) for an improvement on that device, issued to Larsson in 1913. A more recent two-position design is demonstrated here.
Semitone levers on an instrument with strings in a continuous diatonic sequence were illustrated in another earlier post, as also demonstrated on a contemporary Lithuanian kanklės, here. Similar devices came into microtonal use on its southerly cousin the qanun. One of what thereby became its two major designs employs the quarter-tone levers explained here and the other has twelve levers per string course, seen here.