Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:D
['D2 DE FE FA', 'FA AB/c/']  
X:1
L:1/8
M:2/4
K:D
 D2 DE | FE FA | D2 DB | AF E2 | D2 DE | FE FA | B>c dB | AF E2 :| FA AB/c/ | dc BA | FA AB/c/ | 
 dF E2 | FA AB/c/ | dc BA | Be e>d | cB A2 :|  