It's almost impossible to overrate this material. It may be the most influential music in jazz history, establishing standards for originality and sustained invention that have rarely been matched. The JSP set is a superb reissue of Armstrong's essential work. The remastering is by John R.T. Davies, widely acknowledged as the dean of engineers in the field of early jazz, and the resultant sound is simply the best this work has ever enjoyed. There are alternate takes of the later material on Columbia Legacy (including Louis in New York and St. Louis Blues), so collectors will want both. But this recording is superior listening, at a price that also makes it an ideal introduction to one of the few titans of jazz. --Stuart Broomer