Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:G
['', 'GED EDE GAB (c2 d) edc BcA', 'gdd edd gdB (c2 d) edc BcA']  
X:1
L:1/8
M:6/8
K:G
 A |: GED EDE | GAB (c2 d) | edc BcA | BGE (E2 A) | GED EDE | GAB (c2 d) | edc BcA | BGG (G2 A) :: 
 gdd edd | gdB (c2 d) | edc BcA | BGE (E2 g) | gdd edd | gdB (c2 d) | edc BcA | BGG G3 :|  