Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
Q:1/2=80
M:4/4
K:G
['GFGA GBdB cdef gfge', 'dBdB GBdB']  
X:1
L:1/8
Q:1/2=80
M:4/4
K:G
 D | GFGA GBdB | cdef gfge | dBGB dBGB | cAFA cAFA | GFGA GBdB | cdef gfge | dgec BAGF | 
 G2 G2 G2"^NB1" z :: B | dBdB GBdB | ecec Acec | dBdB GBdB | AGFE D3 B | dBdB GBdB | cdef gfge | 
 dgec BAGF | G2 G2 G2"^NB1" z :|  