Build a series of chord progressions that fit well with the existing melody.
G | c2 c c2 e | c2 c c2 e | dBG GBc | dBG GAB | c2 c c2 e | c2 c dBG | 
 ABc dBG | c3- c2 :| e/f/ | g2 e g2 e | c2 c ceg | a2 f a2 f | 
 d2 d def | g2 e g2 e | c2 c dBG | ABc dBG | c3- c2 |] e/f/ | 
 gfe gfe | cdc ceg | agf agf | ded def | gfe gfe | cdc dBG | 
 ABc dBG | c3- c2 |]  
X:1
L:1/8
M:6/8
K:C
 G"A" |"C" c2 c c2 e | c2 c c2 e |"G7" dBG GBc | dBG GAB |"C" c2 c c2 e | c2 c"G7" dBG | 
"F" ABc"G7" dBG |"C" c3- c2 :| e/f/"B" |"C" g2 e g2 e |"Am" c2 c ceg |"Dm" a2 f a2 f | 
"G7" d2 d def |"C" g2 e g2 e |"Am" c2 c"G7" dBG |"F" ABc"G7" dBG |"C" c3- c2 |] e/f/"C" | 
"C" gfe gfe |"Am" cdc ceg |"Dm" agf agf |"G7" ded def |"C" gfe gfe |"Am" cdc"G7" dBG | 
"F" ABc"G7" dBG |"C" c3- c2 |]  