Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:2/2
K:Edor
['(3efg fg', '^cdef g2 fg ed (3B^cd |1 egfg']  
X:1
L:1/8
M:2/2
K:Edor
 G3 B A2 GA | BE E2 GEDE | G3 A B3 d |1 (3efg fg edBA :|2 (3efg fg e3 f |: g2 fg edB^c | 
 d2 (3fed ^cdef | g2 fg ed (3B^cd |1 egfg e3 f :|2 egfg edBA ||  