What is "barleyjuice"

Barleyjuice is a musical group from Philadelphia, Pennsylvania. Formed originally in 1998, the group began as a side project for musicians Keith Swanson and Kyf Brewer, who met as bagpipers in the Loch Rannoch Pipes & Drums of Pineville, Pennsylvania. Barleyjuice's focus was to perform traditional Irish and Scottish songs in a pop/rock fashion, and the band remained a seasonal St. Patrick’s Day project for the first few years of its existence.