The Foghorn Stringband plays old time string band music deeply rooted in the American folk tradition. It’s a pre-copyright, post-bluegrass style, but the members of Foghorn put their own stamp on it. Stephen “Sammy” Lind’s fiddle and Caleb Klauder’s mandolin play tight unison lead lines anchored by the bedrock rhythms of Nadine Landry’s bass. It’s …