What is the background music of the weather forecast (19:30) after the news broadcast? Is it self-created?

Background music of the weather forecast (19:30): Fishing boats sing late

URL /linshi/qhgn.MP3

"Fishing boats sing late" (i.e. Weather forecast background music) was adapted and performed by Pu Qizhang, a well-known electronic keyboard player in Shanghai at that time, based on the national music of the same name...