Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:G
['G B2 d g3 b a>g', 'B>d Bd']  
X:1
L:1/8
M:2/4
K:G
|: G B2 d | g3 b | a>g fe | d/e/d/c/ BA | G B2 d | g3 b | a>g fe | d4 :: B>d Bd | c>e ce | B>d Bd | 
 A3 A | G>B dg | e3 b | a>g fa | g4 :|  