Woodwind Ensemble,Woodwind Trio Flute - Level 3 - Digital Download SKU: A0.1182874 By David Mason. By James James. Arranged by David Mason. Multicultural,Patriotic,World. 5 pages. David D Mason #782623. Published by David D Mason (A0.1182874). James James composed this tune which is used as the Welsh National Anthem. It is also used for the Breton and Cornish Anthem as well.