Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/4
M:2/2
K:Emin
['B A']  
X:1
L:1/4
M:2/2
K:Emin
|:"Em" e e/f/ g e |"D" d e B/ A3/2 |"Bm" B B/c/ B A |"Am" G A E2 |"Em" E3/2 F/ G A | 
"Bm" B d"Am" e f |"Em" g3/2 f/ e B |"D" A B G/ F3/2 ::"G" G3/2 A/ B G |"C" c d B A | 
"Em" G3/2 A/ B G |"Eb" _E C"D" =D2 |"G" G3/2 A/ B G |"C" c d e f |"Em" g3/2 f/ e B | 
"D" A B G/ F3/2 :|  