Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:4/4
K:Bmin
['', 'B2 de f2 gf', 'f4 ga g/f/e fg f/e/d |1 Bd']  
X:1
L:1/8
M:4/4
K:Bmin
 f2 |: B2 de f2 gf | e3 d c>d ef | B2 de f2 gf |1 c2 d2 e3 f :|2 c2 d2 e4 |: gf g/f/e fg f/e/d | 
 Bc de f4 | ga g/f/e fg f/e/d |1 Bd c/B/A A4 :|  