The vocals from this new version were taken from a 1962 live recording with trombonist Jack Teagarden. As Scioneaux tells Gwen Thompkins in an interview, you can even hear audience laughter in the background.
It was quite a feat to tease out Armstrong's vocal and sneak in Preservation Hall Jazz Band's musicians. It happened in phases. First, Scioneaux isolated snippets of Armstrong's voice. Then the musicians got a "tempo reference" from the original recordings to make a backing track. The burden of replicating Armstrong's signature trumpet sound went to Mark Braud.
"He was pretty diligent about it," Scioneaux says. "He spent a lot of time listening to the original recording and the solo that Louis played on that — not wanting to copy it verbatim, but really capture the same spirit. I think he did a good job with it."
Scioneaux says he can tell a Louis Armstrong horn just by hearing it.
"It's like someone having an accent when he's speaking — there are just slight little differences that you pick up on," Scioneaux says.