This is American Routes for St. Patrick's, with singers, fiddlers and pickers from Ireland to Appalachia live in this hour. Sharing Irish, bluegrass and country tunes with one another at the 80th National Folk Festival. Beginning with brothers Rob and Ronnie McCoury playing banjo and mandolin on stage in Salisbury, Maryland, 2021 with Ronnie's tune, " Quicksburg Rondevouz."