Why do we find some languages more beautiful than others?

"Languages have been described as sounding “decent,” “terrible,” “whiny,” “obnoxious,” and even “like a headache.” They are praised as “efficient,”  “advanced” and “modern,” or “sweet” and “poetic,” or accused of having “too much vowels” or just sounding “strange” – whatever that means. One critic even condemned a language as “annoying,” which sounds like a forthright statement, if a bit judgmental". Bernd Brunner riflette sulla musicalità delle lingue. thesmartset.