Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:4/4
K:G
['Bd^cd =cdAd']  
X:1
L:1/8
M:4/4
K:G
 Bd^cd =cdAd | BdGd FdGd | Bd^cd =cdAd | dgdB GdBG | dgdB GdBG | FcAF GdBG | FAcA FDEF | 
 G2 G2 G2 d2 | Bd^cd =cdAd | (3Bdd (3Gdd (3Fdd (3Gdd | (3Bdd (3^cdd (3=cdd (3Add | Gd^cd edB=c | 
 dgdB GdBG | FcAF GdBG | FAcA FDEF | G2 B2 G2 ||  