Is Lan a love song?

No. Lan belongs to Huai Opera, also known as Jianghuai Opera, and does not belong to love songs. Mainly popular in Jiangsu, Shanghai and parts of Anhui. In the mid-Qing Dynasty, a form of rap was popular in Yancheng and Funing, Jiangsu Province, which was developed from Jia Min Haozi, Tian Ge Lei Lei Tune and Transplanting Tune. The form is a solo or two duets, and only bamboo boards are used for clapping. Later, it was combined with the folk incense opera in northern Jiangsu, which was called Jiangbei Opera.