Create a composition based on the provided motif, following the specified musical form.
X:1
L:1/8
M:4/4
K:Bb
['b2 (ag) fedc BABc dBFD', 'dDFB dfba gEGB egbg f=efg'  
X:1
L:1/8
M:4/4
K:Bb
 (3(fga) | b2 (ag) fedc | BABc dBFD | FBAB GBAB | dBed cfga | b2 (ag) fedc | BABc dBFD | 
 EGcd ecag | fedc B2 :: (fe) | dDFB dfba | gEGB egbg | f=efg fdBd | edc=B cf=e_e | dDFB dfba | 
 gEGB egbg | f=efg f_edc | Bbfd B2 :|  