Construct a musical piece using the designated motif and sticking to the alphabetical form presented.
X:1
L:1/8
Q:1/2=60
M:2/4
K:D
['DD/D/ DD FD/D/ DD d2 a2 g2', 'g/f/e/d/ cecA', 'z2 a2 a/b/a/g/ f2 fa g2 g2']  
X:1
L:1/8
Q:1/2=60
M:2/4
K:D
 DD/D/ DD | FD/D/ DD | d2 a2 | g2 e2 | A,A,/A,/ A,A, | A,2 ge | d2 d2 | d2 z2 :: Ae/f/ g/f/e/d/ | 
 cecA | FDFA | d/e/f/g/ af | ge/f/ g/f/e/d/ | cecA | d2 d2 | d2 z2 :| a2 a/b/a/g/ | f2 fa | g2 g2 | 
 e2 z2 | f2 f/g/f/e/ | dfdf | e2 e2 | d2 z2 :|  