I just sent off that conjunto festival article and I put a line in there about how Tony de la Rosa reworked "Alabama Jubilee" into a polka called "El Circo".

Here is a verison of the Alabama Jubilee by West Virginiaq band Cleve Chaffin and the McClung Brothers, recorded by Paramount in Chicago in 1928. The polka will come in a moment. Enjoy

1-13 Alabama Jubilee.mp3