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Ramadhani "Remmy" Mtoro Ongala (1947 – 13 December 2010) was a Tanzanian guitarist and singer. Ongala was born in Kindu near the Tanzanian border, in what was Belgian Congo at the time, now the Democratic Republic of the Congo

Tanzania's Cuban Marimba Band was led by Juma Kilaza after Salum Abdallah's death at a car accident.

This is a 1973 recording from the archives of the Voice of America.

http://blogs.voanews.com/african-music-treasures/category/tanzania/ 

Published in 1972, nice Afro-Pop on the Moto Moto label.

Early 80's East African Rhumba! Maquis du Zaire consists of singers:Mbuya Makonga Adios, Mbombo Wa Mbomboka, King Kikii, Kalala Mbwembwe, and later on Kasalo Kyanga, Kyanga Songa, Assossa, Issa Nundu, and others. Solo Guitarist during this time period is Nguza Viking who later left to create Sambulumaa in 1987.

Mid 80's East African Rhumba!
Here's some information about them: IOSS was created in a kind of coup in 1985, when the bandowner, businessman Hugo Kisima, disbanded his Orchestra Safari Sound (OSS) led by Ndala Kasheba and hired six leading members of Mlimani Park to form the nucleus of the new IOSS. Singer Muhiddin Maalim Gurumo and lead-guitarist Abel Balthazar were the new bandleaders, Hassani Bitchuka the leading vocalist and composer.

Morogoro Jazz Band, also known as K.Z. Morogoro Jazz Band, was a seminal Tanzanian muziki wa dansi band, one of the few that were not based in Dar es Salaam. The band originally played live at the Morogoro Hotel in Morogoro (about 200 km west of Dar) and became very popular in the 1960s and 1970s, receiving much airplay from Tanzanian radio stations.[1] The leader of the band was guitarist Mbaraka Mwinshehe, a former member of Cuban Branch Jazz. The original lineup also included Salim Abdullah, who would later found Cuban Marimba.

Mbaraka Mwinshehe died following an automobile accident in 1979 in Alifia Mombasa hospital

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