(Scottish folk songs)
That is Scottish Gaelic: Auld Lang Syne, which is a very famous poem, literally translated as a long-lost day. According to local elders, Auld Lang Syne was written by robert burns, a Scottish poet in the 8th century. This poem was later set to music. In addition to the original Gaelic version, this song has also been set into the local languages of many countries. It can be said that it is widely spread and known to all women and children. It's definitely a world classic. Throughout China, it is often called "Auld Lang Syne".