Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
['GBAc Bd d2 AEFG |{G} F2 ED', 'BdBd gb b2 AcAc fa a2 GBAc']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
 GBAc | Bd d2 | AEFG |{G} F2 ED | GBAc | Bg g2 | ad ed/^c/ | d2 D2 :: BdBd | gb b2 | AcAc | fa a2 | 
 GBAc | Bdgb | a/g/f/e/ d/c/B/A/ | G2 G,2"^*" :|  