Compose a piece following the given musical structure and incorporating the provided motif.
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
['z G'  
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
 G | Bd dd | BG cc | B2 A2- | A2 z G | Bc cc | AF AA | G2 G2- |1 G2 z G :| G2 z2 ||  