Blues in jazz is purely instrumentalOh contraire, of Billie Holiday's Strange Fruit - I think about the 2nd time I 'really' heard it, I wanted to cry...
And also I would like to say something about the Blues that I've always considered fascinatingly contradictory of the art form itself?
Back in the days, in the country (south) when the shotgun house was on Saturday nights, turned into a little juke joint, that house was a jumping!
With one hell of a house party! The corn liquor was flowing and the catfish was frying! Imagine that, the blues making you happy! Just to be alive! Jumpin, bumpin and grinding!