"bell is ringing" are the only real words I remember. Also, this little bit that probably won't make much sense but may help someone... "sol... n.. *ell..is ring.. ing*........" The parts inbetween the stars (*) were 'bell is ringing x2'.
I used this lullaby to help craft a story character of mine and now that I'm working on the character again I feel that they are incomplete without having the lyrics and all. It'd be amazing if I could find it again!