1, the first step: the first chord in the left hand, the third fret 1 sound in the ring finger, and then keep pressing, the third fret and the second fret in the little finger, and then keep pressing, and the third fret and the third fret in the thumb, which can be understood as an octave with a root re superimposed on the do sound.
Step 2: Play the fourth chord with your right hand and pronounce "Ah" at the same time. This chord is major triad with the root of mi.
Step 3: PLay the first chord with your right hand and pronounce "la" at the same time. This chord is a minor chord with the root sound of do.
Step 4: Play the second chord with your right hand and make a sound of "search" at the same time. This chord is major triad and the root is fa.