Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:6/8
K:D
['f2 f fed', 'fBB fBB g=cc gcc']  
X:1
L:1/8
M:6/8
K:D
|: f2 f fed | A3 ABd | f2 f fed | efe e2 f | g2 g bag | f2 a agf | e2 g f2 e | dcd d2 e :: 
 fBB fBB | g=cc gcc | add add | a2 b bag | fBB fBB | g=cc gcc | f3 edc | d3 gfg | FB,B, FB,B, | 
 G=CC G=CC | ADD ADD | A2 B BAG | FB,B, FB,B, | G=CC G=CC | def edc | dcd d2 e ||  