I’ve sung “Sweet Child o’ Mine” to my son (with minor lyric changes, she->you for instance) in a soft voice almost every night since he was born… three and a half years now.
Mother would 'sing' the Oranges Lemons song. Er...
"Orange lemons sang the bells of St. Clemens" song thing. It's longer. I don't remember it now.
My son used to only fall asleep if we played Voodoo by Godsmack.
https://www.youtube.com/watch?v=22UnY0UVVLE