Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:2/4
K:G
['GGBG d>edB ddcA']  
X:1
L:1/8
M:2/4
K:G
 D | GGBG | d>edB | ddcA | GGBD | GGBG | d>edB | ddcA | F2 G |]  