Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:9/8
K:G
['BdB AGA BGE', 'DEG A2 A A2 B']  
X:1
L:1/8
M:9/8
K:G
|: BdB AGA BGE | BdB AGB A3 | BdB AGA BGE | cBA BGE D3 :: DEG A2 A A2 B | AGE G2 G G2 A | 
 DEG A2 A A2 B | B2 A AGE D3 :|  