What is the southern sound of the song "Birds Return to Hometown"

The sound turns to rhyme, and the rhyme is euphemistic and sweet. The bird's homing song is a southern tune, with a faint rhyme, a euphemistic and sweet rhyme, a clear standing rhythm, and an emphasis on following the ancient melody. We must pay attention to the unity of singing and fingering. Nanyin, also known as "Xianguan" and "Quanzhou Nanyin", is a traditional music in southern Fujian Province, and it is one of the contents of UNESCO's representative list of intangible cultural heritage of mankind.