What are the forms of singing funeral songs?

Funeral song is China's folk traditional funeral ritual activities sung in the customary songs. Also known as funeral songs, night songs, filial piety songs, elegiac songs, mourning songs, funeral drums and so on. Funeral songs are generally sung only in the elderly and middle-aged people after the death of the funeral ritual activities. Singing forms include solo, duet, unison, leading and helping. To adapt to the funeral rituals in the "wake", "funeral", "burial" and other ceremonial procedures, and there are sitting and singing, singing and jumping forms of singing.