Koromfe language
Koromfe is a Gur language spoken in a U-shaped area around the town of Djibo, in the north of Burkina Faso and southeastern Mali, bordering Dogon Country.
Dialects
There are two major dialect areas, most conveniently termed East and West. The traditional centre of the Eastern area is Aribinda and of the Western area Pobé-Mengao. The western area is also known as Lorom (with two short close mid vowels), which should not be confused with the recently created province of Loroum centred on Titao. (Titao is ethnically Koromba, but Koromfe is no longer spoken there.) The grammar of Rennison (1997) describes the Western dialect.
Sounds/Phonology
The tap [r] is an allophone of /d/, which occurs as [d] only word-initially and after nasal consonants.
There also exists a spirantised allophone of /ɡ/, i.e. [ɣ]; phonetic [ɡ] only occurs word-initially, after a nasal consonant, or between two ATR high vowels.
Before nasal vowels the approximants /j/ and /w/ are nasalised, and the nasalised /j/ in slow, careful speech can even harden to [r]. However, there is no phonemic palatal series of consonants in Koromfe.