Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:4/4
K:G
['G3 A B2 c2 d3 B c2']  
X:1
L:1/8
M:4/4
K:G
 D2 | G3 A B2 c2 | d3 B c2 e2 | e2 G2 GG G2 | AAAG FEDD | G3 A B2 c2 | d3 B c2 e2 | dddc B2 A2 | 
 G6 ||  