• Armstrong was the key creator of the mature working language of jazz. Three decades after his death and more than three-quarters of a century since his influence first began to spread, not a single musician who has mastered that language fails to make daily use, knowingly or unknowingly, of something that was invented by Louis Armstrong.

    Dan Morgenstern: Armstrong was the key creator of the mature working language of jazz. Three decades after his death and more than three-quarters of a century since his influence first began to spread, not a single musician who has mastered that language fails to make daily use, knowingly or unknowingly, of something that was invented by Louis Armstrong.