Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/8
M:4/4
K:G
['DB, G,B,DB, G,B,DB, G,2 G2 G2 AF', 'G2 Bc dBGB dBGB ecAc ecAc gfed']  
X:1
L:1/8
M:4/4
K:G
|: DB, | G,B,DB, G,B,DB, | G,2 G2 G2 AF | DFAF DFAF | D2 d2 d2 cB | cdec BcdB | ABcd ef g2 | 
 gdec dBAG | D2 G2 G2 :: Bc | dBGB dBGB | ecAc ecAc | gfed fgae | f2 d2 d2 cB | cdec BcdB | 
 ABcd ef g2 | gdec dBAG | D2 G2 G2 :|  