No advice to give, but reminds me of something I did when I was about 4. My mother said the records didn't work because they were scratched. So I smeared them with Vaseline, thought it would help--after all, mom rubbed that stuff on my scratches!
BTW, I don't think we managed to clean the records, better luck with the kid!
BTW, I don't think we managed to clean the records, better luck with the kid!