Compose harmonious chord progressions to enhance the existing musical composition.
|: B2 A/B/c/A/ BG Gg | dd de B2- Bd | BG AF gf ed | 
 ^c/d/e Ac d4 :| |] A2 G/A/B/G/ A A2 A | B3/2c/4d/4 cB B2 A2 | 
 GG Gg GG G2 | AA Aa AA A2 | cc (c/B/)A Be dc | B2 A2 G4 |] 
 |] ^cccc dD DD | cc cB/A/ B g2 g | ac cB/A/ Be dc | 
 B2 A2 G4 |] |] B2 A/B/c/A/ B"^(n.c.)"G FG | 
 B2 A/B/c/A/ B"^(n.c.)^I" | Dc cB/A/ Be dc | B2 A2 G4 |]  
X:1
L:1/8
M:4/4
K:G
"A" |:"G" B2"D7" A/B/c/A/"G" BG Gg |"G" dd de B2-"D7" Bd |"G" BG"D" AF"Em" gf ed | 
"A7" ^c/d/e Ac"D" d4 :|"B" |]"D" A2"Em" G/A/B/G/"D" A A2 A |"G" B3/2c/4d/4"Em" cB"D7" B2 A2 | 
"G" GG Gg"Em" GG G2 |"Am" AA Aa"D" AA A2 |"Am" cc"D7" (c/B/)A"G" Be"C" dc |"G" B2"D7" A2"G" G4 |] 
"C" |]"A7" ^cccc"D" dD DD |"Am" cc"D7" cB/A/"G" B g2 g |"Am" ac"D7" cB/A/"G" Be"C" dc | 
"G" B2"D7" A2"G" G4 |]"D" |]"G" B2"D7" A/B/c/A/"G" B"^(n.c.)"G FG | 
"G" B2"D7" A/B/c/A/"G" B"^(n.c.)"G FG"^I" |"D7" Dc cB/A/"G" Be"C" dc |"G" B2"D7" A2"G" G4 |]  