Sheesh!
Everbody influences everybody; like it or not, we are all the sum total of all that we've heard before.
That's an exaggeration. We haven't all heard everybody or all people who were influenced by the people we haven't heard. That's actually the crux of this tangent.
Who cares who came first? Actually it's not an entirely puerile question. But the real issue is how do we each resolve and manifest all that we've heard, synthesizing it into our own thing. And our own thing is gonna reflect not only our musical influences, but all other aspects of our physical, psychic and intellectual being.
Who cares? Anybody who likes dealing with accurate info.
This tangent deals with a specific point. A poster found it hard to believe that Alphonso Johnson, a guy who was already soloing on a high level prior to Jaco being around couldn't have been influenced by him after the fact. AJ's soloing style remains the same and the poster said he didn't hear anything that sounding like Jaco... but still found it hard to believe he didn't influence him. All this and he really wasn't familiar with AJ's prior to Weather Report work.
Me, I don't hear any major Jaco influence in Alphonso Johnson's playing. And having spent some time around Jaco in the mid-'80s as he was sliding into a bad mental place, and having met Alphonso Johnson twice, I'm here to tell you I can't imagine two more different folks. So I'm not surprised that they don't at all sound alike to me!
Which is not to take anything away from either of them - each exceptional musicians, pursuing different directions, as befits us all.
The good news is that this thread has hopefully elevated awareness of Alphonso Johnson.
And it's also made me realize that "AJ from Philly" could be either Alphonso Johnson or Anthony Jackson. Ponder that one for a while!
I remember this one as "Slim".