What is a Song of mourning?

A song of mourning is also known as an elegy, lament or dirge. It's a song, poem, or piece of music that shows sorrow or laments the death of a person, or some other form of loss. Songs of mourning are often sung at funerals or other memorial services, to express grief and pay respect to the departed. They may also be written as a personal expression of sadness, or as a form of catharsis for the author.