As Amadou Bah, then 'chef d'orchestre' of Super Biton once told me, you can't expect to remain true to your culture if you go and live somewhere else. He was talking about Salif Keita... But by this standard Abdoulaye Diabaté is a shining example of an artist who has stuck by his roots. He still lives in Koutiala, which is somewhere between Ségou and Sikasso.
And although he moves with the times (i.e. records mainly in Europe), he still plays the Bambara rhythms of his native region.
This is a cassette from the 1980s, when he was still recording in Mali. The sound quality may be less than perfect, the music amply compensates this.
EDIT June 10, 2013: the link has been updated.