Abstract
The internationally known Londonderry Air carries the status of a cultural symbol of Ireland. Both its collector and its publisher claimed in 1855 that the music was very old, a belief which has passed into conventional wisdom. In 1934 and 1979 two writers cast doubts on the tune's age and suggested that its «collector» had more to do with the moulding of the tune than the process of tradition. Subsequently, doubts about the music have prevailed in academic circles but remained unexamined. This article queries the deductions of these writers and explores the musical origins and evolution of the Air. The methodology is historical and musicological. From an examination of collections of Irish traditional music evidence is presented in support of the tune's age and fashioning by tradition. The lost verses of a song known to have been accompanied by the tune in the nineteenth century are revealed as the likely original words to the music.