Create a musical composition based on the alphabetized given sequence and the provided motif.
X:1
L:1/8
M:4/4
K:Bmin
['AB B2', 'ef f2', 'AB B2']  
X:1
L:1/8
M:4/4
K:Bmin
|: AB B2 dBed | ef f2 edBd | AB B2 d3 B | e3 d efed | AB B2 dBed | ef f2 edef | af f2 e2 de | 
 e2 de edBA :: ef f2 af f2 | ef f2 edBA | ef f2 af f2 | afed edBd | AB B2 dB B2 | effd edBd | 
 AB B2 dBed | dBBA B4 :: a2 fe f2 ed | e2 dB dB A2 | AB B2 dBed | ef f2 edBd | AB B2 dB B2 | 
 effd edBd | AB B2 dBed |1 dBBA B4 :|2 f8 ||  