Compose a piece based on the given chord sequence.
'D', 'A', 'D', 'A', 'Em', 'A', 'D', 'D', 'Em', 'D', 'Em', 'D', 'A', 'D', 'D', 'G', 'D', 'G', 'D', 'A', 'D'  
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
|:"D" dffe/d/ |"A"{d} c2 c/d/e/f/ | gedc |"D" d/e/f/g/ af | dffe/d/ |"A"{d} c2 c/d/e/f/ | 
"Em" ge"A"dc |"D" d2 z2 ::"D" FD"Em"GE |"D" FD"Em"GE |"D" FG"A"AB/c/ |"D" dA/G/ G/F/E/D/ | 
"D" FD"G"GE |"D" FD"G"GE |"D" FG"A"AB/c/ |"D" d2 d2 :|  