Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:D
['DFA BAF', 'fdB ABd faa']  
X:1
L:1/8
M:6/8
K:D
 F3 EFE | DFA BAF | ABd ede | fdB AFE | FAF EFE | DFA BAF | BdB AFE | FDD D2 A, | DEF EDB, | 
 DFA BAF | ABd ede | fdB AFE | F2 D EFE | DFA BAF | B/c/dB AFE | FDD D2 e |: fdB ABd | faa afd | 
 g2 e fed | Bcd efg | fdB ABd | faa afa | bag fge | fdc d3 :|  