The phonology of Njyem

The sound system or phonology of Njyem restores to the phonologist the respect he once had for African languages. The neighbors of the Njyem, all speakers of related Bantu languages, are under the mistaken impression that they are speaking Njyem when they are instead committing many failures in their speech. This is mainly due to the difference between the number of tones in their respective languages: Njyem has 3 tones and all those I have studied in the A-80 group have 2. There is also a polar tone rule that is found in Njyem that appears nowhere else. is a