Construct a melodic piece using the prescribed alphabetical outline and provided motif.
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
['BBBB d2 cB', 'AGAB c2 Bd cBAG']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
 d | BBBB | d2 cB | AGAB | A/G/A/B/ Ad | BBBB | d2 cB | AGAB | G3 :: B | AGAB | c2 Bd | cBAG | 
"^NB" A/G/A/B/ AB | AGAB | c2 Bd | cBAG | d3 :|  