As in many countries there is no formally decreed National Anthem of Wales, but by long-standing tradition the de facto National Anthem of Wales is "Land of My Fathers". This is played and sung at many events such as Rugby matches where the Welsh National Team are playing. The lyrics were written by Evan James in 1856 and the music was composed by his son James James in the same year. The song was originally called "Glan Rhondda" (meaning the Rhondda Valley in Wales), but a few years later it was given the title "Hen Wlad Fy Nhadau" by which it is known today. Like other counties belonging to the United Kingdom, the anthem for the UK as a whole is God Save the Queen but a variety of Songs and Anthems may be used to represent the individual countries of the UK as required. This arrangement of "Land of My Fathers" is for piano and it can be used as a solo piece, or to accompany singers and soloists playing other instruments. More National Anthems and Folk Songs can be found in our articles National Anthems & Patriotic Songs and Folk Music & Songs.
The image below is the first page of the sheet music, and here you can download the full sheet music for Land of My Fathers for piano in PDF format.