Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/16
M:3/4
K:D
['F4 G4 A4 d2Bc', 'D4 f2ed c2ec A4 f2ed c4 e2a2']  
X:1
L:1/16
M:3/4
K:D
 F4 G4 A4 | d2Bc d2c2 B2AG | F4 G4 A4 | d2Bc d4 D4 :: f2ed c2ec A4 | f2ed c4 e2a2 | 
 f2ed g2fe f2ed | e2dc d4 D4 :|  