I didn't count the bass notes, but to tin-ear John, I thought it was Boogie Woogie (https://en.wikipedia.org/wiki/Boogie-woogie ). Despite what that article says, the beat persisted into the early 50's to be replaced by Rock n'Roll, at least in SoCal. I guess it is in the family of jazz. I do like it.
It was the first "modern" beat I learned from a much older cousin.