The sound of bosori in Yongjeong-ri, Buyeo, is called hosang-sori, which means the death of a person who has lived in good fortune for a long time. The exact date of the song's beginning is unknown, but it is believed to have been handed down from a long time ago through Ha Un (the owner of the show).

Yongjeong-ri's bier sound is composed of various sounds, such as Jinsori, even-numbered, two-syllable, and self-sound. Among them, the bier is divided into two parts, and it is characterized by even-handedness in which the bier is exchanged. When the bier goes out, the slowest Jin-sori starts the even number. When one sound is over, another sound begins, not the chorus. In other words, there is a overlapping sound in the form of giving and receiving, which makes it a overlapping sound. Because they sing the other two lyrics, their high singing ability is displayed, and their sad and solemn musicality stands out. These even-handed sounds are found only in Buyeo and Gongju, and are characteristic sounds of Baekje culture.

The sound of the bier in Yongjeong-ri, Buyeo, is unique with its majestic sound that shows the whole community's overcoming of grief over death.