You can find the letter notes for 'Happy Birthday' here: noobnotes.net/happy-birthday-traditional/
G G A G C B | G G A G D C | G G + G E C B A | F F E C D C
Thank you very much to the person who said the notes but whoever said 'don't be a beginner' I thought that was very rude and cruel!!!!
Sa sa ga sa ma ga
E e e f e d repeat