Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
Q:1/4=140
M:4/4
K:G
['gdcB ecBA', 'G,2 gde=f ecBA aefg fdcB bggf gedc']  
X:1
L:1/8
Q:1/4=140
M:4/4
K:G
|: gdcB ecBA | cBAG AFED | gdcB ecBA | (3(Bcd) DF G2 G,2 :: gde=f ecBA | aefg fdcB | bggf gedc | 
 (3(Bcd) DF G2 G,2 :|  