Compose music pieces incorporating the provided chord modifications.
'A', 'G', 'A', 'G', 'D', 'G', 'A', 'G', 'A', 'G', 'D', 'G'  
X:1
L:1/8
M:4/4
K:Amix
|:"A" a2 fa ecAB | c{B}A eA fAeA | a2 fa ecAc |"G" Bcdc BG G2 |"A" a2 fa ecAB | cdef"G" g2 fg | 
"D" afge fdec |"G" Bcdc BG G2 ::"A" c{B}A eA fAeA | c{B}A af ec A2 | c{B}A eA fAeA | 
"G" Bcdc BG G2 |"A" c{B}A eA fAed | cdef"G" g2 fg |"D" afge fdec |"G" Bcdc BG G2 :|  