This is a #solo performance on the #santur, one of the main instruments within #Persian #music. The santur is a trapezoid hammered box #zither (AKA #dulcimer) with 72 strings; often in three groups of nine pitches in courses of 4. Nowadays brass/copper and steel strings are used, but historically these were silk..
Habib Soma’i, a master of the santur once said: “The tuning of the santur made me old.” Because tuning the #instrument is difficult, especially matching the four-string-courses exactly, as dissonance is not a desired aesthetic, or switching between the various microtonal dastgah that lay at the heart of #Iranian music theory. The derived Kashmiri santoor and various modern innovations have increased the number of bridges and strings, introduced levers to facilitate easier switching between scales, and construction methods for more tonal consistency.
https://www.youtube.com/watch?v=nVMsFWOpbuk