Develop melodic works that adhere to the given chord alterations.
'G', 'Am', 'D', 'G', 'Am', 'D7', 'G', 'G', 'Am', 'G', 'Am', 'D7', 'G', 'G', 'Am', 'D7', 'G', 'Am', 'D7', 'G'  
X:1
L:1/8
M:2/2
K:G
 Bc |"G" dgga gedc | B2 G2 GBdB |"Am" ceab"D" afdB | c2 A2 A2 Bc |"G" dggf g2 BA | GDBD GBdB | 
"Am" ceaf"D7" gedc |"G" B2 G2 G2 :: dc |"G" (Bd)gd (Bd)gd | BdcA GBdB |"Am" ceae ceae | 
 c2 A2 A2 dc |"G" (Bd)gd (Bd)gd | BdcA GBdB |"Am" ceaf"D7" gedc |"G" B2 G2 G2 :: ga | 
"G" (3bag (3agf gedc | B2 G2 G2 ab |"Am" (3c'ba (3bag"D7" afdB | c2 A2 A2 ga |"G" bgaf g2 BA | 
 GDBD GBdB |"Am" ceaf"D7" gedc |"G" B2 G2 G2 :|  