Construct a melodically pleasant tune that corresponds with the specified chord structure.
'G', 'Am', 'D7', 'G', 'Am', 'D7', 'G', 'D7', 'G', 'D7', 'G', 'D7', 'G', 'D7', 'G', 'G', 'C', 'G7', 'C', 'F', 'G7', 'C', 'C'  
X:1
L:1/16
M:2/4
K:G
"G" d2B2 g2>d2 |"Am" f2e2 e^de2 |"D7" c2A2 f2>c2 |"G" e2d2 ded2 | d2Bd g2fg |"Am" b2a2 e4 | 
"D7" d2fa d'c'ba |"G" g2g2 g2 z2 ::"D7" dba2 dba2 |"G" dag2 dag2 |"D7" gfAc f2>e2 |"G" eddg B2d2 | 
"D7" dba2 dba2 |"G" dag2 dag2 |"D7" f2d2 d'2>f2 |1"G" g2g2 g2 z2 :|2"G" g2g2 g2ce |: 
[K:C]"C" gggg g2c'2 |"G7" Tb2a2 a4 | BBBB a2g2 |"C" cccc a2g2 | gggg g2c'2 |"F" Tb2a2 a4 | 
"G7" BBBB a2g2 |1"C" c2cc c2ce :|2"C" c2cc c2 z2 |]  