Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:4/4
K:Bmin
['BAB f3 ef', 'FBd c3 Bc', 'fA (3AAA f2 ef', '(3Ace g3 f egfe']  
X:1
L:1/8
M:4/4
K:Bmin
|: BAB f3 ef | afbf afde | BAB f3 ef | afec dBBA | BAB f3 ef | afbf afde | B3 c ABec | dfaf feec :: 
 FBd c3 Bc | (3dcB cA BAFE | FBd c3 Bc | dfaf ^ge (3cBA | FBd c3 Bc | (3dcB cA BAFA | B3 F ABec | 
 dfaf feec :: fA (3AAA f2 ef | g2 (3fed ed (3cBA | fA (3AAA f2 ef | (3gfe (3bge d3 e | 
 fA (3AAA f2 ef | g2 (3fed ed (3cBA | B3 c ABec |1 dfaf feec :|2 dfaf fe (3Ace |: g3 f egfe | 
 decA GA (3Ace | g3 f egfe | GA (3AAA A2 (3Ace | g3 f egfe | ageb geag | ebge decA | 
 GA (3AAA A2 (3Ace :|  