Listen to Llan de Cubel sometime. A Celtic folk band from Asturias, in northern Spain. Perfectly good Irish “diddley music” but in Spanish.
For a real treat also listen to “Red Wine”, an excellent Italian bluegrass band. Mandolinist is a thoracic surgeon and they sing phonetic english, but also have songs in Italian. A trip.
Turn down the sound, look at the musicians and the setting, and say it’s not Ireland or Scotland. Turn up the music and enjoy beautiful Celtic tune sung in Spanish.