Compose a piece using the specified musical pattern based on the alphabet notation and provided melodic motif.
X:1
L:1/8
Q:1/8=232
M:4/4
K:Emin
['B2 BA BG EF', 'Bd ef']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:Emin
|: B2 BA BG EF | GA Bd ef ge | B2 BA BG EF | GB AF EF GA | B2 BA BG EF | GA Bd ef ge | 
 B2 BA BG EF | GB AF EF GA :: Bd ef gf gb | ag fg ed BA | Bd ef gf gb | ag fg ef ge | B2 BA BG EF | 
 GA Bd ef ge | B2 BA BG EF |1 GB AF E2 B2 :|2 GB AF E2 E2 ||  