Bai is a Sino-Tibetan language spoken mainly in northwest Yunnan province in southwest China. In 2003 there were 1.3 million Bai speakers. There are three main dialects of Bai: Jianchuan (Central), Dali (Southern), and Bijiang (Northern). Speakers of the Jianchuan and Dali dialects are able to understand one another if they spend some time together. The Bijiang dialect is not mutually intelligible with the other two, and may be a separate language, or in fact two languages: Panyi and Lama.
Bai is traditionally classified as a Tibeto-Burman language, however some linguists think it is closer to the Sinitic (Chinese) languages.
Information about the Bai alphabet provided by Michael Peter Füstumum
Information about the Bai language