Compose songs in accordance with the specified chord transitions.
'G', 'D7', 'G', 'D7', 'G', 'D7', 'G', 'C', 'G', 'D7', 'G', 'G7'  
X:1
L:1/4
M:4/4
K:G
 d |"G" g d"D7" d e/f/ |"G" g d"D7" d e/f/ |"G" g d"D7" d c |"G" B2 G2 :|"C" c e e d/c/ | 
"G" B d d c/B/ |"D7" A3/2 B/ c d |"G" B2"G7" G2 :|  