Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
Q:1/2=90
M:4/4
K:D
['D4 FDGE A4 BABc d2 ef agfe', 'fdfa gfed']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:D
 D4 FDGE | A4 BABc | d2 ef agfe | gfed dcBA | D4 FDGE | A4 BABc | d2 ef agfe | dfec d4 :: 
 fdfa gfed | dced dcBA | fdfa gfed | bagf (f2 e2) | fdfa gfed | dced dcBA | D2 FA dfaf | gedc d4 :|  