I've heard it said (perhaps apocryphally) that when non-English speakers are asked to judge words based purely on aesthetics, the word 'diarrhea' tends to rank quite highly.
Using generative Natural Intelligence, an italian wrote a top 40 song that sounded to 1970s non-english speakers as if it had had english lyrics: https://www.youtube.com/watch?v=-VsmF9m_Nt8
(compare "abstract comics", "asemic writing")