Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:2/4
K:Emin
['EB B>A BG', 'e>f gf ef gb af']  
X:1
L:1/8
M:2/4
K:Emin
|: EB B>A | BG E/F/G | FA A>B | AG F/E/D | EB B>A | BG Ee/f/ | gf ed |1 BA AG/F/ :|2 BA Ae/f/ || 
 g2 g>f | gf e>f | gf ef | gb af | g2 g>f | gf eg | fd de | fg a/g/f | g2 g>f | gf e>f | gf ef | 
 gb af | bg af | g/f/e fd | eB c/B/A | BG AF ||  