Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:2/2
K:Edor
['GA B<EED EFGA B<EED G2 GA B<EBA', 'abag efed']  
X:1
L:1/8
M:2/2
K:Edor
 GA | B<EED EFGA | B<EED G2 GA | B<EBA (3B^cd ed | =cABG A2 :: (3efg | abag efed | 
 (3B^cd ef g2 (3efg |1 abag efed | =cABG A2 :|2 afge fded | =cABG A2 ||  