Formulate diverse chord combinations to augment the harmonic richness of the given musical work.
D | G G GB G2 | z G A DD | D B G G z | D | G G GB G2 | z G A | c B A G2 ||  
X:1
L:1/8
Q:1/4=90
M:6/8
K:G
 D |"G" G G GB G2 | z G"D" A DD | D"G" B G G z | D |"G" G G GB G2 | z G"D" A | c B A"G" G2 ||  