he was a scholar of swahili. he took langston hughes poem from english to swahili.oice was so wonderful, we used him on the record of uhuru afrika. >> africa, where the great congo flows. where a new dawn breaks. africa. a young nation awaits. africa. uhuru afrika. >> talk about the making of th uhuru afrika, one of your great albums. >> she had worked with dizzy gillespie. she played trombone. this was rare. >> the only woman i had heard who played trombone. she had this big sound. this had to be early 1950. we collaborated in 1958 for the first time. when she came over to the bandstand, i said, i have to meet this lady. electricity between us. she moved to new york, originally from kansas city commack and like mary lou williams, was living in harlem. they knew each other, the two queens of music. i got together with her and we had the same feeling. you see, artistically, paul robeson said it best. an artist is responsible to fight for freedom. an artist is responsible to change society. not only do you have to be good at your craft, but you have to make a contribu