Here are the chords to play "Happy Birthday" and tips on the best way to do them smoothly. Then, you can learn Happy Birthday solo chord melody style!
Happy Birthday Chords
Here is a lesson on changing these chords EASILY...
This lesson is taken from the GuitarPrinciples Publication "The Path: Chords & Rhythm", which is specially designed for beginners, teaching them special methods for learning chords, and a series of step by step songs to master.
The strum lines are placed over the words they go with. All strums are in an even "1-2-3" even if they are widely spaced. That is because (as in all songs) some syllables are sung faster than others. Just keep the foot tapping a steady beat. If you have trouble, say "1-2-3" as you go along.