Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:2/2
K:D
['Adfd Adfd']  
X:1
L:1/8
M:2/2
K:D
"D" dA A2"Bm" BAGF |"G" GABd"A" cABc |"G" d2 ed"A" cABc |"D" dfed"A" cABc |"D" dA A2"Bm" BAGF | 
"G" GABd"A" cABc |"G" d2 ed"A" cABc |1"D" df"A"ec"D" d2 (3(ABc) :|2"D" df"A"ec"D" dAFG |: 
"D" Adfd Adfd | Adfd dcBc |"A" Acec Acec |"A" Acec"G" dcBc |"D" Adfd Adfd | Adfd dcB^g | 
"A" aA A2"G" dcBA |1"G" (3(Bcd)"A" ec"D" dAFG :|2"G" (3(Bcd)"A" ec"D" d2 Bc |]  