Jazz is not Blues and Blues is not Jazz.......

I suspect that most of the pianos in the various “venues” that Joplin played were not fully in tune with themselves either.  You’re in good company.  Some of those old pianos do have great tone; sounds like you have a good one.

'Jazz ain't Blues and Blues ain't Jass.......But I tell you what. If you cain't play the blues. You cain't play jass.' 

If we didn't have blues were sure wouldn't have jazz.

@oldhvymec,
You're on to something big bruh.

How's this, Country Western, Rock and Roll, Blues and Jazz were ALL born in the USA. They are bound to cross a few boundaries.
Wrong country for being a purest, ay?

If you think about it, one was born from the another, or branched and taken from another. It's not like Opera, Dixieland jazz, Bali, or Bagpipes, crossing lines... Just sayin, more alike than not...

The older I get the more I learn that the blues or any american music for that matter is a melting pot of all music that came before it. Even the indigenous music of the american indian had just as much effect on the creation of blues as any of the european and african music that is given more credit.

Even in New Orleans the black folks of the 1800's recognised that the indian population and people were treated even worse than the black man. And if that ain't the blues, I don't no what is.

Legend has it Charlie Patton, the so called father of Delta Mississippi blues was part Choctaw which had a profound effect on the music he was creating or should I say melting. I have learned to love Delta Mississippi music. Blues, french, spanish and indigenous indian and all. After all  Mississippi is a Choctaw word.   

https://en.wikipedia.org/wiki/Charley_Patton

👍

It also shows blues pioneer Charley Patton, an early 20th Century Mississippi Delta guitarist of Choctaw and African-American ancestry, fused Native American rhythms with black music.

Co-director Catherine Bainbridge says the film presents a missing chapter in the history of American popular music.

https://www.insider.com/ap-pbs-films-tackles-native-american-links-to-rock-blues-jazz-2019-1

Let us compare the sound of the "Delta Blues" to the sound of Blues in Jazz;


          https://www.youtube.com/watch?v=EyIquE0izAg


          https://www.youtube.com/watch?v=s0aIjyX7vwI



Now lets listen to Blues in jazz;


            https://www.youtube.com/watch?v=DMgwWAaxQQ4&list=RDDMgwWAaxQQ4&start_radio=1


            https://www.youtube.com/watch?v=-488UORrfJ0&list=RDDMgwWAaxQQ4&index=3


All of that music is called "The Blues". Do you hear a major difference between what's called Blues in Jazz and what's called "Blues" since I can remember and even before then? Or is that the difference between "Delta Blues" and all other Blues?


This gets back to the OP's original statement, 
Jazz is not Blues and Blues is not Jazz.......