Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:D
['ABde fd f2 e2{fe} ce Aece ABde', 'd2 fgfe fg a2 efed efge fgfe']  
X:1
L:1/8
M:4/4
K:D
 ABde fd f2 | e2{fe} ce Aece | ABde fdfa | gecA d2 d2 :: fgfe fg a2 | efed efge | fgfe fgaf | 
 gecA d2 d2 :|  