Design chord combinations to enhance the harmony of the given musical composition.
G B G B | G B c/B/A/G/ | F A F A | F A d/c/B/A/ | 
 G B G B | G B d3/2 B/ | c/B/A/G/ F/G/A/c/ | B G G2 :| 
 g f/e/ d c | B c d2 | g f/e/ d c | B g A2 | g f/e/ d c | 
 B c d3/2 B/ | c/B/A/G/ F/G/A/c/ | B G G2 :|  
X:1
L:1/4
M:4/4
K:G
"G" G B"G/B" G B |"G" G B"G/B" c/B/A/G/ |"D7" F A"D7/F#" F A |"D7" F A"D7/F#" d/c/B/A/ | 
"G" G B"G/B" G B |"G" G B"E7" d3/2 B/ |"Am" c/B/A/G/"D7" F/G/A/c/ |"G" B"C" G"G" G2 :| 
"G" g f/e/ d c |"G" B c d2 |"G" g f/e/"Em" d c |"Am" B g"D7" A2 |"G" g f/e/ d c | 
"G" B c"E7" d3/2 B/ |"Am" c/B/A/G/"D7" F/G/A/c/ |"G" B"C" G"G" G2 :|  