Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Edor
['E2 BE', 'd2 fd', 'dBfB B2 fB', 'dffe dfBf ce e2 ceAe']  
X:1
L:1/8
M:4/4
K:Edor
 E2 BE dEBE | E2 Bc dAFD | E2 BE dEBB | BABc dAFD | E2 BE dEBE | E2 Bc dAFD | E2 BE dEBB | 
 BABc dAFA || d2 fd c2 ec | d2 fd faaf | d2 fd c2 ec | BABc dAFA | d2 fd c2 ec | d2 fd fa a2 | 
 (3bag af gfed | BABc dAFA || dBfB dBfB | cAeA cAeA | dBfB B2 fB | defg aecA | dBfB B2 fB | 
 cAeA cAeA | (3bcd (3efg aceA | B2 Bc dAFA || dffe dfBf | ce e2 ceAe | dffe defg | agfg aece | 
 dffe dfBf | ce e2 ceAe | afge fded | BABc dAFD ||  