Craft a musical composition that adheres to the specified musical theme and letter-based structure.
X:1
L:1/16
M:3/4
K:Dmin
['(fe)ee (ed)dd', "[dD]4 (cd)ef g4 (ec)c2 c'2c'(b a2)ag e2<c2"]  
X:1
L:1/16
M:3/4
K:Dmin
|: Afff (fe)ee (ed)dd | d(ed)^c (de)fg a4 | (ab)c'b a2a2 (a2{ba)}gf | gaba a2g2 g2fe | 
 f2ff (fe)ee (ed)dd | d(^ce)c [AA]2d2 [dD]4 :: (cd)ef g4 (ec)c2 | c'2c'(b a2)ag e2<c2 | 
 Td(^cd)e f(ef)g a2ag | =f(ed)^c (d2c2) A4 | (ab)c'b a2a2 (a2{ba)}gf | (ga)ba (a2g2) g2fe | 
 f2ff (fe)ee (ed)dd | d(^ce)c [AA]2d2 [dD]4 :|  