Roberval Thanks for the question. The numbers that are in green are for the more difficult chords. The ones new players may not be familiar with. Example You play E 022100, Get E chord and look where your fingers are sitting. Bm would be 224432 which is a more difficult this is a Bar Chord. If you are not familiar with Bar Chords Go on RU-vid and check out how to play them. There is only about 3 main ones to learn then you just move them up or down the neck. If you can play F Bar Chord then you can play F# G G# A and so on it goes. The second page of the song should give all the Chords You Need for this song. Larry
@@David-y6o Yes David. If you play Em chord you would have your fingers on, 022000, E string open, A string 2, D string 2, G string 0, B string 0, e string 0.