Construct a melodic piece using the prescribed alphabetical outline and provided motif.
X:1
L:1/8
Q:1/4=160
M:2/4
K:G
['G2 B2', 'G4 GB GB A2 A2 Ac Ac']  
X:1
L:1/8
Q:1/4=160
M:2/4
K:G
 G2 B2 | d4 ef ge | d2 d2 G2 B2 | d3 e dcBA | G4 :: | GB GB | A2 A2 Ac Ac | B2 B2 ef ge | 
 d3 e dcBA | G4 :|  