“What? I just need to know three chords to play a song?”
“Actually, you can play ‘Frere Jacques’ with just one chord. There are many songs with only two chords. I have identified at least thirty of these.”
I tell my ukulele students that 80% of all songs use only 20% of all chords. I apply the 80-20 rule to many situations, often to help with management of expectations.
So far I have collected over 60 songs that use only C, F, and G or G7 chords. My list of three chord songs that use three other chords, such as Riptide (Am, G, C), is nearly as long. This is wonderful news for beginners.