Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
Q:1/8=140
M:6/8
K:D
['ABA ABA A2 d f2 f', 'efe efe e2 a c2 c B2']  
X:1
L:1/8
Q:1/8=140
M:6/8
K:D
|: ABA ABA | A2 d f2 f | fed cde | d2 f A2 z/ A/ | ABA ABA | A2 d f2 f | agf edc | d3 d3 :: 
[K:A] efe efe | e2 a c2 c | B2 B BcB | A2 c e2 e | efe efe | e2 a c2 c | B2 B BcB |1 A3 A3 :|2 
 A3 F2 G |]  