Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/16
M:3/4
K:Bb
['BcBA B2b2f2d2 B2FE DECD B,4', 'dfdB dBdf bfdB']  
X:1
L:1/16
M:3/4
K:Bb
 BcBA B2b2f2d2 | B2FE DECD B,4 | edcd e2gf edcB | B2BG ABcd c2F2 | BcBA B2b2f2d2 | B2FE DECD B,4 | 
 edcB cdef gecB | BAGA [FA]4 [B,DB]4 :: AcAF AFAc ecAF | BFDF .BFdB fdBF | fcAF =EFGA B2>d2 | 
 cBAG F2f2 !>!e4 | dfdB dBdf bfdB | dfdB dBdf bfdB | bfdB ABcd egec | dfAc B4 B,4 :|  