Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/2
K:D
['fdec d2 AG FGAd =cAGA Adde fded', '(e f2) g']  
X:1
L:1/8
M:2/2
K:D
 fdec d2 AG | FGAd =cAGA | Adde fded | (3B^cd ef gaag | fdec d2 AG | FGAd =cAGA | Adde fded | 
 gage eddg :: (e f2) g a2 a2 | bgag fddg | (e f2) g a3 a | bgaf g2 ag | (e f2) g a3 a | 
 b2 ag fdda | bgaf gfed | (3B^cd ef gaag :|  