Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/8=160
M:6/8
K:D
['ADD BAF Ade fdB', 'ede fdB AFA BdB', 'afd gbe gbe f3']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:D
 B | ADD BAF | Ade fdB | ADD BAG | F/G/AF GFE |"^5" ADD BAF | Ade fdB | AdB AFE | FDD D2 :| g | 
"^9" fef ede | fdB AFA | BdB AFd | AGF E2 g |"^13" f3 ede | fdB AFA | BdB AFE | FDD D2 :| e | 
"^17" fef afd | gbe gbe | f3 afd | ceA ceA |"^21" fef afd | gbe gbe | f3 ede | fdc d2 :|  