Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:6/8
K:Emin
['B2 E G2', 'B efg']  
X:1
L:1/8
M:6/8
K:Emin
 e | B2 E G2 E | BGE E2 d | B2 E G2 B | AFD D2 d | B2 E G2 B | ABG F2 D | EFE G2 A | BGE E2 :| B | 
 efg f2 e | ^d>ef B2 =d | AFA (B/^c/d)B | AFD D2 B | efg f2 e | ^d>ef B2 =d | (B/^c/d)B AFA | 
 BGE E2 B | efg fge | ^def B2 =d | AFA (B/^c/d)B | AFD D2 B | (GFG) EGB | e^de Bge | d^cB AFA | 
 BGE E2 ||  