The Setar (Persian: سهتار, from seh, meaning "three" and tār, meaning "string") is an Iranian musical instrument. It is a member of the lute family, which is played with the index finger of the right hand. Two and a half centuries ago, the fourth string was added to the setar which most of the time has the same tone as the bass string. It has 25–28 moveable fretswhich are usually made of gut. They were made of silk in the past. The setar covers more than two and a half scales.
photo by @iran_adventure_fs