You stole my sled, you stole my sled. Look at Hip and Taiaut, look at Hip and Taiaut. The music shares common origins, and sometimes common lyrics, with Cajun music, but traces a different path of evolution. Cajuns began to listen to country western, with musicians such as Jimmy C. Newman striking off for Nashville. The rub-board is predominantly a zydeco instrument.
Zydeco bands are also more likely to include a horn section.
Cajuns have more lyrics in French. Yet spirit of both a zydeco dance and Cajun fais-dodo continues to reflect the music's common origin. A part of that common origin is that both Cajun and Creole music until recently has been handed down in an oral tradition, so that there is no standard written version of most of it. Also, even with written words and notes, neither Cajun nor Creole has ever felt bound to follow them. I took French music that far, I took it all the way.