Have you tried contacting the Library of African Music at Rhodes University in South Africa?

http://www.ru.ac.za/ilam/contactus/

Best wishes
Nigel
________________________________________
From: Association for Recorded Sound Discussion List [[log in to unmask]] on behalf of Thomas Stern [[log in to unmask]]
Sent: 23 March 2014 10:59
To: [log in to unmask]
Subject: [ARSCLIST] Hugh Tracey - Music of Africa recordings

Is there a discography of the recordings by HUGH TRACEY ????.
The recordings appear on numerous labels (Gallotone 78 and LP, Gallo, Decca, London, Kaleidophone, Sharp Wood/SWP (CD) etc.

Thanks!
Best wishes, Thomas.