Thinking more about my last post, I'm realizing that the words to a song or their language really make very little difference to me in terms of how much I like the music. I can "appreciate" clever lyrics and good fits with the music, but I don't think those things alone would ever make me like a song. But, I think the "sounds" of the words matter. A standard vocal exercise when learning a song is to practice singing only the vowels, to emphasize the sounds and sensations you should be focusing on after the consonants are added. I'm guessing that for most music, hearing only the vowels sung, which would preserve most of the "sounds" of the words while obscuring what they actually are, would be basically the same for me as hearing the full words.