Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/16
M:2/4
K:Bb
['d2B2 BdcB', 'd2B2B2 df gfef bfdf g2c2 c2f2 gaba']  
X:1
L:1/16
M:2/4
K:Bb
 af | d2B2 BdcB | A2F2 F2ED | E2c2 cdcB | A2F2 F2 bf | d2B2 BdcB | ABcd efga | babf gece | 
 d2B2B2 :: df | gfef bfdf | g2c2 c2f2 | gaba gfdB | G2c2 c2df | gfdf bfdf | gfdf bagf | dfdf cfcf | 
 d2B2B2 :|  