Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
Q:1/8=232
M:4/4
K:Dmin
['fe fg']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:Dmin
|: cF F2 cF dF | cF FG AG G2 | cF F2 cF dF | GB AG FD D2 | cF F2 cF dF | cF FG AG G2 | 
 FG Ac (3(ded) cA | GB AG FD D2 | fe fg ab ag | fe fg ad de | fe fg a2 ag | fd ec Ad d2 | 
 fe fg ab ag | fe fg ad df | af gd f2 ed | cA GB AD D2 :|  