Compose music that follows the given chord structure.
'G', 'C', 'Am', 'D7', 'D7', 'G', 'C', 'G', 'D7', 'G', 'D7', 'G'  
X:1
L:1/8
M:4/4
K:G
 D |:"G" G>F GA B2 BA | AG Bd g4 |"C" eg ge ed dB |1,3 c2"Am" cB"D7" BA AD :|2,4 c2"D7" AF"G" G4 :| 
 g |:"C" e2 ce g2 fe |"G" ed dc B4 |"D7" D2 FA D2 FA |1,3 G>"G"F GB d4 :|2,4 A>"D7"G GF"G" G4 :|  