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Santoor hammers

The Persian santoor is the original form of the hammered dulcimer (traditional hammers are illustrated). The treble bridge divides the strings at a ratio of the octave 1:2. In the original construction there are adjustable bridges instead of the single treble bridge. This feature allows the player to change the tuning of the instrument within minutes to different modal scales even with quarter-note intervals

Because the bass strings are usually brass whereas the strings over the treble bridge are steel, the sound character of the santoor is distinguished through a mix of the warm ground tones of the bass and the sharp metallic sound of the upper strings.

The resonance board of the traditional instruments is usually made of hard wood, for instance walnut.

The santoor is particularly suitable for improvised music.