No, I find no tradition combining clawhammer and diatonic accordion. We'll have to start our own. The rhythm (one-two-and, one-two-and) gallops in a manner compatible with accordion, and strikingly similar to French Canadian fiddle tunes. I'd like to learn it myself. check out the lineup at Cajun Cafe on the Bayou in Pinellas Park for live Cajun and Zydeco; a great place, with lots of buttonbox fans.