Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:D
['', 'F3 AFE FDB, A,B,D', '', 'e fed dcd edc Bdg fef']  
X:1
L:1/8
M:6/8
K:D
 D2 E |: F3 AFE | FDB, A,B,D | F3 G3 | BdB AFE | F3 AFE | FDB, A,B,D | FEF GFG | BAF D2 :| e |: 
 fed dcd | edc Bdg | fef dcd | ABF A2 e | fed dcd | edc Bdg | fef gec | dAF D3 :|  