Build a series of chord progressions that fit well with the existing melody.
|: DB, | G,2 B,D GBAG | E2 ED EFGE | DGEG DGEG | DGED A,CB,A, | G,2 B,D GBAG | 
 E2 ED EFGE | D3 G FGAc | BGAF G2 :: Bc | B G G2 BGcG | BGFG EG D2 | 
 GEED EFGA | BcBA F2 ED | B G G2 BGcG | BGFG EG D2 | E3 F GAGE | 
 DB,A,B, G,2 :|  
X:1
L:1/8
M:4/4
K:G
|: DB, |"G" G,2 B,D GBAG |"C" E2 ED EFGE |"G" DGEG DGEG | DGED"D" A,CB,A, |"G" G,2 B,D GBAG | 
"C" E2 ED EFGE |"G" D3 G"D" FGAc |"G" BG"D"AF"G" G2 :: Bc |"G" B G G2 BGcG | BGFG EG D2 | 
"C" GEED EFGA |"G" BcBA"D" F2 ED |"G" B G G2 BGcG | BGFG EG D2 |"C" E3 F"G" GAGE | 
"D" DB,A,B,"G" G,2 :|  