Alex, I first heard "Blue Funk" in 1959, but not until you pointed it out, did I realize the contribution "Skeeter Best" made. I heard it, but I didn't identify what I heard.
That's my favorite tune on that album, but since it's by Ray Charles and Milt Jackson, I just never identified "Skeeter Best" although I heard him playing my favorite part on my favorite tune.
That tune is so much more than just music, it conveys something that's totally incomprehensible to most people who don't have an urban origination; South Side of Chicago, North Side of St. Louis, or other urban areas that existed once upon a time.
It's kind of like you have to have sung the song, in order to be able to comprehend the song. What "Blue Funk" conveys goes farther than what any words or picture could convey; that's why it's a real mystery to me, how is it that you have so much music of this nature; as an example, all of those Chicago musicians?