Bantu (Zone B)
Teke–Mbere|Teke–Mbede languages Wikipedia
Teke–Mbere is a proposed intermediate group of Bantu languages, coded Zone B.50–80 in Guthrie's classification, along with the erstwhile Mbundu language Songo. According to Nurse & Philippson (2003), they are:Nzebi (B.50)
Ethnologue suggests that the unclassified Songo "dialect" of Yansi (B.80) may be the same as the Songo here.