Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:6/8
K:D
['DED FAB']  
X:1
L:1/8
M:6/8
K:D
 A |"D" DED FAB | =cBA- AdA |"D" DED FAB |"C" =cAG- G2 A |"D" DED FAB | =cBA Ade | fgf ed=c |1 
"A" Adc"D" dAF :|2"A" Adc"D" def :|[K:A]"A" =gfe- efe | eag aec | Ace =gfe- |"E" eag bge | 
[K:A]"A" =gfe- efe | eag aec | Ace =gfe |1"E" eag"A" aef :|2"E" eag"A" a3 :|  