That an historic figure in Tex-Mex music would have the Germanic-sounding name Zimmerle might seem strange to some listeners, who might expect a Jimenez, Gonzalez, or Villareal. But bear in mind that the Tex-Mex sound most commonly known as norteño evolved out of a fusion between rhythms and songs from the north of Mexico and the accordion styles of German settlers in Texas, and then it starts to make sense. Fred Zimmerle, as it turns out, is more than just a symbolic name in this musical fusion, as many credit his concepts and the music of his main group, Trio San Antonio, wi...