This is Tian Zi. The song "Egret Return to Court-Akabella (pure tone Genshin Impact Ost-Ling Hua in God)" is the exclusive role of Ling Hua in God, and how to sing it is included in the album "Please don't forget the chorus". Acabella, or cappella, can be traced back to church music in the Middle Ages, when church music was sung only by human voice, and no musical instruments were used.