Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:4/4
K:Emin
['BAGF EDEF GEBE GB[EB]c BAGF']  
X:1
L:1/8
M:4/4
K:Emin
 BAGF EDEF | GEBE GB[EB]c | BAGF EDEG | (3FED AD FA[DA]c | BAGF EDEF | GEBE GB[EB]c | 
 BAGF GB[Be]^c |1 dABG FDD=c :|2 dABG FDD^c ||  