Create musical compositions that adhere to the specified chord changes.
'C', 'G7', 'C', 'G7', 'C', 'C', 'D7', 'G7', 'C', 'D7', 'G7', 'C'  
X:1
L:1/8
M:6/8
K:C
 e |"C" g^fg agf | gec G2 c |"G7" BdB GAB |"C" cBA G2 ^f | g^fg agf | gec G2 c |"G7" BdB GAB | 
"C" c3 z2 :: G |"C" GEG cBc |"D7" ABA d2 c |"G7" Bgg g^fg |"C" ag^f gec | GEG cBc |"D7" ABA d2 c | 
"G7" Bgg age |"C" c3 z2 :|  