Gee, having heard thousands of country blues, jug band, R 'n B, jazz, old-time, and country tunes, I have to say that I've never heard anything close enough to Maybellene to be called a source. Could it be that it essentially sprang from the fertile mind of Chuck Berry? After he hit the big time with Maybellene, he practiced the time-honored art of self-plagiarism with Nadine, which, this being Chuck Berry, is just as good.