Czech's in the Mail Polka was written as a tribute to the German-Czech style polkas that the composer became so familiar with during his undergraduate years  at the University of Nebraska-Lincoln. He was a regular member of a local "polka band" and played the occasional "dance job" on numerous weekends. The style of the polka should always be light and bouncy remembering that this is, after all, dance music. The tempo should never rush (unless you have dancers who want to fly). Pay close attention to the various accents when they occur and allow all melodic lines to shine.