Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/16
M:2/4
K:D
['d2FG A2(3def gfed fdBc d2FG', 'afbf afdf']  
X:1
L:1/16
M:2/4
K:D
 (3ABc | d2FG A2(3def | gfed fdBc | d2FG A2AB | AFEG FDDA | d2FG A2(3def | gfed fdBc | d2FG A2de | 
 faef d2 :: (3efg | afbf afdf | gfed (cd)(3efg | afbf afdf | abag (fd)(3efg | afbf afdf | 
 gfed fdBc | d2FG A2de | faef d2 :|  