Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:3/4
K:Dmin
['gf ed', 'aF Fa af gE Eg ge']  
X:1
L:1/8
M:3/4
K:Dmin
 dD FA df | eA ce gf | ed gf ed | cB/c/ A2 A2 | dD FA df | eA ce gf | ed gf ed | cB/c/ d2 d2 :: 
 aF Fa af | gE Eg ge | f2 d2 gf/e/ | d/c/B/c/ A2 A2 | aF Fa af | gE Eg ge | fd aa gf | 
 ed/c/ d2 d2 :|  