Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:6/8
K:Emin
['_B2 =B', 'EBE GFE']  
X:1
L:1/8
M:6/8
K:Emin
 _E | EBB _B2 =B | EBE _B2 =B | EBB EBB | CBA GAF | EBB _B2 =B | EBE _B2 =B | EBB CBA | GAF E2 :| 
 D | EBE GFE | FFF AGF | EBE GFE | FBB _B2 =B | EBE GFE | FFF AGF | EBB CBA | GAF E2 :|  