Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:4/4
K:G
['DGGF GABG EAA^G ABcA FDFA d3 c', 'AAFA dded BBGB']  
X:1
L:1/8
M:4/4
K:G
 D2 | DGGF GABG | EAA^G ABcA | FDFA d3 c | BcAB GDB,C | DGGF GABG | EAA^G ABcA | FDFA d3 c | 
 BGAF G2 :|[K:D] FG | AAFA dded | BBGB eefe | ccAc egfe | dcBA GEFG | AAFA dded | BBGB eefg | 
 afdA gecA | d2 f2 d2 :|  