When DD was a little baby, it was the ants come marching, then it was twinkle, twinkle - all 3 verses, and that still helps calm her down. DS so far prefers for me to la,la rather than actually sing and that tends to be any tune I can think of!
3 verses? What are they please?

The favourites here are Twinkle, Twinkle & Hush little Baby, sometimes if something else has grabbed me that day I will sing it.

I have my own words too which I sing to either Twinkle twinkle or Hush little Baby.