Compose music pieces incorporating the provided chord modifications.
'D', 'D', 'G', 'A7', 'D', 'A', 'D', 'G', 'D', 'A', 'D', 'G', 'A7', 'D'  
X:1
L:1/8
M:2/2
K:D
 fg |"D" a2 a2 fefg | a2 a2 fefg | a2 a2 f2 e2 | [fd]3 e [fd]2 f2- |"D" f2 e2 d2 e2 | fgfe d2 ef | 
"G" gfed"A7" cABc |"D" d6 :: cB |"A" Acec Acec |"D" dcde f2 f2 |"G" gfgf g2 a2 |"D" f3 g f4 | 
"A" Acec Acec |"D" dcde f2 ef |"G" gfed"A7" cABc |"D" d6 :|  