Hi June,
A lot of languages, spoken by the natives, sound beautiful. Gaelic is one of them. I also find a lot of the African languages sound just as good, as the vowels and consonants, as well as their usage for different meaning and emotion, if you know what I mean, result in an entrancing sound.
However, Gaelic, both Scottish and Irish, is my favourite language. Never has any nation on Earth ever used so many letters of the alphabet that have never been pronounced in so many words, as the Irish! But what a beautiful language, just beating the Scots by a whisker.
All the best,
TE.