Vieux was a great musician. I had the opportunity to play percussion behind him on a number of occasions. Yes, most musicians, even with the Toumani Diabate crowd, saw Vieux as a revolutionary. Unfortunately he died in 2006.
You can get the real deal as far as avante garde technique goes with Justin Perkins from Toubab Krewe. Justin stayed with me on two different occasions in Mali and possibly put in the most time with Vieux of any foreigner before his death. Just has had the praises of numerous accomplished musicians as being one of the few who can play like Vieux. Added to his own musical knowledge Justin is re-revolutionizing the instrument again.
Catch last week's concert by Vagabon Tribe at the CCF in Nouakchott Mauritania:
http://www.youtube.com/watch?v=9JFDf3sMJCc