For some reason your comment reminds me of this: https://en.wikipedia.org/wiki/Prisencolinensinainciusol - https://www.youtube.com/watch?v=fU-wH8SrFro
For some reason your comment reminds me of this: https://en.wikipedia.org/wiki/Prisencolinensinainciusol - https://www.youtube.com/watch?v=fU-wH8SrFro
Japanese psychedelic band Kikagaku Moyo writes lyrics that are basically Japanese baby talk / babble.
https://youtube.com/watch?v=idfOZFdTM-8&t=2m39s
https://genius.com/Kikagaku-moyo-dripping-sun-lyrics
Or Dead Can Dance, e.g. https://www.youtube.com/watch?v=VEVPYVpzMRA .
It's harder to generate good gibberish than it appears at first.
And let’s not forget “Ken Lee”
https://youtu.be/vUAaHkGpJy8