How a Traditional Korean Gayageum Creates Sound
by Lori Dorn from Laughing Squid on (#5WDEY)
Musician Luna Lee, known for playing popular songs on a Gayageum, showed how the traditional Korean instrument works. Lee provided information about how different notes are played, how the moveable bridges work, and the incredible flexibility of the strings that lets her create different tones on the instrument.
Here is the answer about how the Gayageum make sound and also about bridge. I hope this helps!