Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
['B2 FE DB,DF GEGB AFAc', 'B2 (3fga bfdB GBeg fedc BAGF ecec']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
 (3FGA | B2 FE DB,DF | GEGB AFAc | dBec"^MS unclear" fdcB | A2 c2 cedc | B2 FE DB,DF | GEGB AFAc | 
 Bbab gecA | B2 B2 B2 :: (3fga | bfdB GBeg | fedc BAGF | ecec dBdB | A2 F2 F3 B | GEGB edcB | 
 AFAc fedc | Bbab gecA | B2 B2 B2 :|  