Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:6/8
K:D
['BdB AF/G/A DFA', 'a3 baf', 'd2 f fef', 'Add fdd']  
X:1
L:1/8
M:6/8
K:D
|: AF/G/A AF/G/A | BF/G/B BdB | AF/G/A DFA | g/f/ed BdB | AF/G/A DFA | B3 BAB | de/f/g afe | 
 fdB BAB :: def a3 | baf afe | de/f/g afe | fdB BdB | de/f/g a3 | baf a2 f | g3 f3 | edB BAB :: 
 d2 f fef | fef fef | d2 f fef | edB BAB | d2 f fef | fef def | g3 f3 | edB BdB :: Add fdd | 
 edd fdB | Add faf | edB BAB | Add fdd | edB def | g3 f3 | edB BdB :|  