Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:D
['D2 FE DFAc', 'D2 CB, A,B,CD EFGE GFEF GABc dcBA', 'FE D2', 'DFAc dcde fdAF GABG FADF', 'EA,CE D2']  
X:1
L:1/8
M:4/4
K:D
|: FE | D2 FE DFAc | dcdf edAF | GABG FGAF | GFED CEA,C | D2 FE DFAc | d2 df edAF | G2 BG F2 AF | 
 EA,CE D2 :: CB, | A,B,CD EFGE | GFEF GABc | dcBA Bcde | f2 gf e2 (3ABc | d2 fd c2 ec | dcdA BAFD | 
 G2 BG F2 AF | EA,CE D2 :|[K:D] FE |: D2 FE DFAc | dcde fdAF | GABG FADF | GFED CEA,C | 
 D2 FE DFAc | dcde fdAF | GABG FADF |1 EA,CE D2 (3A,B,C :|2 EA,CE D2 CB, |: A,B,CD EFGF | 
 E3 F GABc | dcdB ABde | fdgf eA (3BBc | defd ceAc | dcdB AFDF | GABG FADF |1 EA,CE D2 CB, :|2 
 EA,CE D2 (3A,B,C ||  