Build a musical piece by incorporating the given motif into the prescribed form.
X:1
L:1/8
M:4/4
K:Bdor
['B2 fB', 'B2 bB'  
X:1
L:1/8
M:4/4
K:Bdor
|: B2 fB cBfB | B2 fB cBAc | B2 fB cBfe | gbaf ecAc :| B2 bB aBgB | (3BBB af ecAc | B2 bB aBgb | 
 afed cBAc | B2 bB aBgB | (3BBB af ecAc | fb (3bbb bafg | afed cBAc ||  