What is lament poetry?

This is a nonnarrative poem expressing deep grief or sorrow over a personal loss. The form developed as part of the oral tradition along with heroic poetry and exists in most languages. Examples include Deor's Lament, an early Anglo-Saxon poem, in which a minstrel regrets his change of status in relation to his patron, and the ancient Sumerian "Lament for the Destruction of Ur." Compare complaint; elegy.