Looking for traditional music in Congo and in Rwanda in the 1970s

Theme: music, object
Photographer: Jos Gansemans
Place of production: Rwanda
Culture: Hutu
Legend: Ihembe horn of the antelope inzobe (Limnotragus spekii) that is played as an instrument for signalisation to summon hunters for the hunt.
Inventory number: MP.0.0.1849