Auld Lang Syne is a very popular Scottish folk song, which is widely used in various occasions, including graduation ceremonies and weddings. But on some occasions, it is also used as funeral music, mainly because its melody is slow and sad, suitable for expressing grief and nostalgia.

In addition, because the lyrics of this song express the nostalgia and cherish for friendship, it is also considered as a musical form that can express grief and nostalgia. On many occasions, people will choose this song to express their memory and wishes for their lost friends or relatives.

In a word, Auld Lang Syne, as a funeral music, is mainly due to its slow and sad melody, which is suitable for expressing grief and nostalgia. At the same time, its lyrics also express the cherish and nostalgia for friendship.