Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:4/4
K:G
['GE D2 DE G2 GA BABd', 'G2 Bd g2 g2 gbag fdfd fagf']  
X:1
L:1/8
M:4/4
K:G
|: GE | D2 DE G2 GA | BABd cBAG | FGFE DEFG | ABAF E2 GE | D2 DE G2 GA | BABd e/f/g fe | 
 dcBA GFGA | B2 G2 G2 :: Bd | g2 g2 gbag | fdfd fagf | e2 ef gfed | B2 e2 e2 ge | dBGB d3 B | 
 cdef gage | dcBA GFGA | B2 G2 G2 :|  