Most Influential American Musician of All Time?


Who do you regard as the most influential (i.e., musically, not necessarily commercially) American musician of all time across all genres?

The more I learn about Louis Armstrong, the more I am persuaded that he deserves that honor.
jeffreybowman2k
Without a genre of music, it's a dumb question.

And that's because musicians from one genre don't/can't influence musicians in a different genre (blues+rock, for example)? Explain.
Genre! We don't need no stinkin' genres!

That's why Miles Davis is in the rock hall of fame. So is Robert Johnson, Hank Williams & Mahalia Jackson.