Nice analysis thanks Jim.
I read in Ira Gitler's book "Swing to Bebop" that it was Diz and Klook who developed Bebop rhythm, while they were working together in Lucky Millinder's band. This must have been a bit before Bird emerged.
Diz also reported somewhere (can't remember where, might have been ths same book) a conversation he had with Monk in which they were reminiscing about the old days and who taught them this or that. "And what did you learn from me?" Diz asked. Monk replied, "nothin'".
Your post made me think about Mbalax, the popular music of the Wolofs (and Serer) in Senegal. Traditional Mbalax, which became very popular again in the late '90s, as politics shifted towards religion, is rhythmically a good deal more straightfroward than modern Mbalax, because it was based around street parades, often with a religious purpose. But, as the Senegalese music scene shifted in the late '70s from the Jazz and Latin styles of Dexter Johnson's Star Band, Star Band No 1 and Orchestre Baobab to using more indigenous music, particularly with the breakaway from those bands to the formation of new bands like Etoile de Dakar and Youssou N'dour's Super Etoile de Dakar, the music took traditional Mbalax and kind of infiltrated some of those other rhythms into it, producing something that, by the late '80s, Youssou N'dour said "white people can't dance to". No more true than Amiri Baraka saying of Bebop "YOU can't dance to it". But no less true, either.
Even Bird and Diz are rhythmically straightforward compared to early '80s Mbalax.
MG