Here's an interesting obscurity. In 1968 French jazzman Jef Gilson flies to Madagascar, meets local musicians, plays and records, mostly Gilson's numbers, also a great version of the The Creator Has a Master Plan, no vocals to worry about.
A few years later political trouble brings many of said musicians to exile in Paris. Gilson records several albums with them, live and in his own studio, in various formats. A few years on all musicians, save Gilson himself, decamp to funk, disco, etc. But while it lasted it was excellent, rawish jazz with a stew of percussion and some long work-outs on the traditional "valiha" (bamboo zither).
A 4 disc package has been put together by the UK's Jazzman Records, who are experts at reviving the lost and forgotten and never-was-but-should-have-beens. There are some sound samples on their site.
http://www.jazzmanrecords.co.uk/jef-gilson-et-malagasy-jef-gilson-et-malagasy-cd