Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:4/4
K:G
['E2 Bc BGEF GABG FGAF', 'G3 A BcBA']  
X:1
L:1/8
M:4/4
K:G
|: G2 BG FGAF | E2 Bc BGEF | GABG FGAF | DFAB AFDF | G2 BG F2 AF | E2 Bc BGEF | GABG FGAF | 
 DFAB AFDF :: BcBA G3 A | BcBA Beed | B3 A G2 FG | DAAB AFDF | B3 A G3 A | BcBA Be e2 | 
 dBBA G2 FG | E2 AB AFDF :|  