There are many ways to play chords, one of which is using triads. These alternate progressions come in handy with two guitarists. It is much better if both don’t play using the same type of chords. Add variety. One way is for one to play open chords, and the other barre chords. The use of triads is another way.
Below are four ways to play the G-Em-C-D progression with triads. Strum them as a chord, or arpeggiate them.
< Only play the circle-notes. Do not play the open strings. Note that the triads used here do not use the E and A strings at all. Triads do exist on those strings, they are just not used in this lesson. >
As always, you can move these progressions up and down the fretboard to play in other keys. For example, move all 4 chord shapes of any line up 2 frets to play A-F#m-D-E. Move all 4 chord shapes of any line down 3 frets to play the E-C#m-A-B progression.
Note: Practice playing all 4 lines in this order to move up the fretboard as you play. You will continuously be playing G-Em-C-D, but in other voicings.