Bai is spoken primarily in the Dali Bai
autonomous county in western Yunnan, China. Dell (1981)
notes 8 tones: high, mid and low level, high falling and
low falling, mid rising and low fall-rise -- the 8th tone
is very high with a final glottal stop which shortens the
vowel. Since no initial glottal stops occur this feature
is analyzed as part of an extra high tone. There are no
final consonants. /j,w/ can appear after some consonants,
as well as initially. /w/ has a labial-palatal variant
before /i/. The labio-dental fricative vowel does not
occur after bilabials.

Dell, F. 1981. La Langue Bai: Phonologie et Lexique.
Etudes Linguistiques No. 2, Editions de l'Ecole des Hautes
Etudes en Sciences Sociales, Paris.