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
['B3 A FAAF EBBA Beef dBAF DEFA', 'E2 Eeef defd B3 c defe dBAF']  
X:1
L:1/8
M:4/4
K:Edor
 B3 A FAAF | EBBA Beef | dBAF DEFA | BdAF FE E2 :| Eeef defd | B3 c defe | dBAF DEFA |1 
 BdAF FE E2 :|2 BdAF Edcd ||  