"Brian Boru's March" is a traditional Irish tune often played on the bagpipes. It's named after Brian Boru, a significant figure in Irish history who was a high king of Ireland. The tune itself is often associated with military or processional contexts due to its strong and regal melody. The march has become popular in Irish and Scottish music circles, often played during events and ceremonies. Its origins are deeply rooted in Irish heritage, making it a cherished piece in the traditional music repertoire.