Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:4/4
K:Emin
['BA GFGE', 'E2 Bd e3 f efge d2 B2', 'E2 BA BGEG BGEG BAGF E2 TFG', 'Bd edef']  
X:1
L:1/8
M:4/4
K:Emin
 BA | GFGE g2 Tfe | dBGB c2 TBA | GFGE DEFA | d2 A2 A2 TBA | GFGE g2 fe | dBGB c2 BA | GFGE DEFA | 
 G2 E2 E2 :: Bd | e3 f efge | d2 B2 B2 AB | d^cde defe | d2 A2 A2 Bd | edef g2 Tfe | dBGB c2 BA | 
 GFGE DEFA | G2 E2 E2 :: BA | BGEG BGEG | BAGF E2 TFG | AFDF AFDF | AGFE D2 TEF | GFGE Egfe | 
 dBGB AcBA | GFGE DEFA | G2 E2 E2 :: Bd | edef efge | d2 B2 BAB^c | dcde defe | d2 A2 A2 Bd | 
 edef egfe | dBGB AcBA | GFGE DEFA | G2 E2 E2 :|  