Compose a piece based on the given chord sequence.
'D', 'G', 'A7', 'D', 'G', 'A7', 'D', 'G', 'A7', 'D', 'A7', 'D', 'A7', 'D', 'A7', 'D'  
X:1
L:1/8
M:9/8
K:D
 A |"D" dfa adf dcd |"G" Bcd"A7" efd cBA |"D" dfa adf dcd |1"G" Bcd"A7" edc"D" d3 :|2 
"G" Bcd"A7" edc"D" def |"A7" ecA ABA ecA |"D" d2 e fef agf |"A7" ecA ABA ecA ||1 
"D" d2 e"A7" fdc"D" d2 f :|  