Sian, my parents may have been thinking merely of "Cantorion yn Nghaerfyrddin", or just singers in general, in Carmarthen.

GUEST, Nashville cat, note the horrible things that happen to the first letters of words depending on case, location, tense, gender, and a whole host of other factors. Best wishes to your student friend, if she pursues "Yr iaith y nefoedd" (The language of Heaven).