Louis on the horn in 1950; Photo: The National Portrait Gallery of the Smithsonian Institution/New York Daily News

Regarded as the heralding in of a new generation of artistic jazz, Louis Armstrong walked into a Chicago studio on this day in 1928 and took mentor Joe “King” Oliver’s Nawlins parlour/picnic plunker “West End Blues” and reinvented its swing.

With his Hot Five backing crew in tow, Armstrong erupted with a 15-second cadenza that has become the “Stairway to Heaven” of jazz for budding players, slowing his iconic trumpet class to a vibe that Billie Holiday infamously quoted as sounding “like he was making love to me.”

But the sweet spot comes in a swooning scat breakdown midway through, Armstrong butterflying about the mic, “Wha-whad do/Wha dwaa dee da da doo,” that he later would improvise live and end-cap with such romantacisms as “oh yes, I know.” That Satchmo lyrical stamp is just something that can’t be replicated. Ever: