Preservation

A new song coming out from Louis Armstrong who's been dead for nearly 40 years?

The wizardy is the work of New Orleans' Preservation Hall and  engineer Earl Scioneaux III, who played a trick on time.

Despite having a certain expertise in recording in my past, I have to admit I wouldn't ever have known where to start.

Audio: NPR's Weekend Edition Sunday, 2/14/10, Host: Gwen Thompkins.