Create musical composition by adhering to the given musical structure represented by letters and integrating the given motif.
X:1
L:1/16
M:2/4
K:Bb
['dBfB bB(3BAB GBFB EBDB', 'fbdf BdFB']  
X:1
L:1/16
M:2/4
K:Bb
 B,2B2 B,B (3BAB | dBfB bB(3BAB | GBFB EBDB | cdec AFEC | B,2B2 B,B(3BAB | dBfB bB(3BAB | 
 GBFB EBDB | ABce dBBd :: fbdf BdFB | AFAc ecAc | fbdf BdFB | ecAc B2de | fbdf BdFB | AFAc ecAc | 
 fdec dBcA | FECD B,2 z2 :|  