Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:Emin
['BE E/E/E EDB,D CE E/E/E DFAc Bedf', 'BE E/E/E']  
X:1
L:1/8
M:4/4
K:Emin
|: BE E/E/E EDB,D | CE E/E/E DFAc | Bedf fgeB | cedf agfd | eB B/B/B ABEG | FD D/D/D EDB,A, | 
 B,E E/E/E DFAF | GBAF E3 A :: BE E/E/E eEdE | E/E/E eE dBAG | BE E/E/E eEde | f3 g fedf | 
 eB B/B/B ABEF | G3 E EDB,D | CE E/E/E DFAF | GBAF E3 A :|  