Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:2/4
K:D
['dA d>e fa fd g>f', 'fa fd g>f']  
X:1
L:1/8
M:2/4
K:D
 A | dA d>e | fa fd | g>f ed | ce cA | dA d>e | fa fd | g>f ea | fd d :: g | a2 a>g | fa fd | 
 g>f e>d | ce cA |1 a2 a>g | fa fd | g>f da | fd d :|2 dA d>e | fa fd | g>f ea | fd d |]  