Compose harmonious chord progressions to enhance the existing musical composition.
B2 BG B2 BG | B2 BG FGAc | B2 BG cBAG | FDEF GABc :: d2 dB e2 eB | 
 c2 cA d2 dc | B2 BG cBAG |1 FDEF GABc :|2 FDEF G3 |]  
X:1
L:1/8
Q:1/4=160
M:4/4
K:G
"G" B2 BG"G" B2 BG |"G" B2 BG"D" FGAc |"G" B2 BG"C" cBAG |"D" FDEF"G" GABc ::"G" d2 dB"C" e2 eB | 
"D7" c2 cA"G" d2 dc |"Em" B2 BG"Am" cBAG |1"D7" FDEF"G" GABc :|2"D7" FDEF"G" G3 |]  