But yes, there is a country flavor to Texas blues. Who influenced who remains a matter for debate. Chicago blues with it's heavy orchestration and horns seems, to me at least, to be a 'citified' version of the Delta sound that was just an evolution of the blues that occurred during the Great Migration of the 30's and 40's. Hundreds of thousands of African-Americans from the Delta and the Deep South were displaced because of the automation of farm work or were looking for a better life from the hard scrabble existence of sharecropper work and headed north where factory work was plentiful because of the war.
Naturally, they took the blues with them. Electric blues became the standard when their acoustic guitars were drowned out by the loud and rowdy patrons at the club. From there, they started to add sidemen who played the horns...etc. By the mid to late 40's, that BIG sound was known as the Chicago style blues.
That was a great observation, by the way! :)
Let me know and I can give you some names of early blues players and bands that you might want to check out. (I'm kind of a blues geek). :D
[FONT=Tahoma]"All I can do is be me ... whoever that is". Bob Dylan [/FONT]