Uilleann Pipes has been long known for the symbolic instrument of Irish music. The word "Uilleann" is the homonymic word of union and also a reflection of the history of Ireland. Unlike the Scottish pipes which is known as an outdoor pipe, Uilleann pipes is an indoor instrument and requires more care of the maintenance. John Butler, who was obsessed by the unique sound of Uilleann pipes and traditional Irish music since sixteen, devotes his passion and enthusiasm in pursuing mastership in pipe making.