An Chúilfhionn March

March · 4/4 · G major

An Chuilfhionn March is an instrumental march setting of the famous traditional Irish air An Chuilfhionn, or The Coolin, whose precise composer and historical origins remain uncertain. Set in 4/4 meter and the key of G major, it typically exhibits a stately and lyrical character suited to traditional ensemble or solo performance. Because the tune's historical background is largely undocumented beyond its deep roots in the Irish tradition, musicians rely on its flowing melodic line to shape its steady march tempo.

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