Rok, I suppose each of us has our own idea of what is and isn't Delta in a blues sense, but I have to agree with you that the city of N.O. was a relative void in the birth and development of blues music. In that sense, you're also likely correct that young Louis "never set foot in that Delta." My understanding is that the only way he ever left N.O. was by playing Jazz on the riverboats.
In those formative years, I think of Jazz as city music and Delta Blues as rural. Blues became city music when it spread up the river and railroads to Chicago and other cities along the way as part of the "Great Migration."
Good way for me to spend a little time learning today while playing everyone's links. A geographer would say N.O. is in the "St. Bernard Delta," which is one of six delta "lobes" that have formed over the millenia. I don't want to go full nerd here, but if anyone is curious about their layout, here's a graphic:
https://mississippiriverdelta.org/files/2016/07/delta-lobes.jpg
(Not a hot link - you'll have to copy and paste in your browser.)
In those formative years, I think of Jazz as city music and Delta Blues as rural. Blues became city music when it spread up the river and railroads to Chicago and other cities along the way as part of the "Great Migration."
Good way for me to spend a little time learning today while playing everyone's links. A geographer would say N.O. is in the "St. Bernard Delta," which is one of six delta "lobes" that have formed over the millenia. I don't want to go full nerd here, but if anyone is curious about their layout, here's a graphic:
https://mississippiriverdelta.org/files/2016/07/delta-lobes.jpg
(Not a hot link - you'll have to copy and paste in your browser.)