Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:D
['B2 A Bcd', 'e2 d']  
X:1
L:1/8
M:6/8
K:D
 A2 F ABd | f3 def | gfe fed | B3 B2 A | Bcd B2 A | Bcd B2 A | Bcd efe |1 d3 dcB :|2 d3 def |: 
 a2 a a2 f | e2 d BAB | e2 d BAB | e2 d Bef | a2 a a2 f | e2 d B2 A | Bcd efe |1 d3 def :|2 
 d3 dcB ||  