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:D
['Addc defd cAGF EFGE Addc defa gece', 'd2 defg agfd cdef gece defg']  
X:1
L:1/8
M:4/4
K:D
 Addc defd | cAGF EFGE | Addc defa | gece ed d2 :| defg agfd | cdef gece | defg afdf | gece ed d2 | 
 defg agfd | cdef gece | defg abag | gece ed d2 ||  