☆Cheolhyeongeum(CHG) was designed by Kim Young-chul, a master of Namsadangpae in the 1940s. It is played by pulling or tearing off eight iron strings with a bar.

It has a strange sound like a combination of Geomungo, gayageum, or Western guitar.

Yoo Kyung-hwa, who played as a geomungo player and changed her direction to CHG, is said to have accepted CHG into her destiny since then after hearing a recording of Ahn Hyang-nyeon's performance with Lim Dong-sik, a master of geomungo.

Sin Sacheolga(New four seasons' song) is a piece of music that sings about the scenery in all four seasons, and in this performance, you can see it playing around instrumental music.