Produce musical works that coincide with the indicated chord modifications.
'C', 'G7', 'C', 'G7', 'C', 'C', 'G7', 'C', 'G7', 'C', 'G7', 'C', 'G7', 'C'  
X:1
L:1/8
M:3/4
K:C
 EG |:"C" C2 EG ce |"G7" g2 fG B2 | D2 GB df |"C" ag eG c2 | C2 EG ce |"G7" g2 fG B2 | DG Bd fB |1 
"C" c2 z2 EG :|2"C" c2 z2 z2 |:"G7" DG Bd f2 |"C" EG ce g2 |"G7" ag fG df |"C" ag eG c2 | 
"G7" DG Bd f2 |"C" EG ce g2 |"G7" ag fA Bd |"C" c2 z2 z2 :|  