I have an In Concert featuring Youssou N'Dour and Ryuichi Sakamoto. Seems to be from an Earth Day concert in Tokyo in 1991 but I can't find a tracklisting. I've worked out two-thirds of them but am struggling with N'Dour's stuff. I'll keep hunting but thought I'd throw it out there in case one of you happen to have it on file! Cheers.