Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:2/2
K:Dmin
['d2 e2', 'f2 fe d2']  
X:1
L:1/8
M:2/2
K:Dmin
 fe | d2 e2 f2 g2 | e2 ^c2 d2 e2 | f3 g g3 (f/g/) | a6 :: ag | ^f2 d2 g2 gf | e2 c2 f2 fe | 
 d2 g2 c2 f2 | f3 e f2 fe | d2 =B2 e2 ed | c2 =BA a2 ag | f3 e e3 d | !fermata!d6 |]  