Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:Ador
['(cB) A2 (AB) AGEG', 'A2 (eg) a2 (ab) age(g ag)ab a2']  
X:1
L:1/8
M:4/4
K:Ador
 (cB) | A2 (AB) AGEG | AGA(B cB)cd | efg(a ge)dc | B2 G2 G2 (cB) | A2 (AB) AGEG | A(GAB) (cB)(cd) | 
 (3(efg) (fa) gede | c2 A2 A2 :: (eg) | a2 (ab) age(g | ag)ab a2 (ge) | d(ega) gedc | 
 B2 G2 G2 (cB) | A2 (AB) AGEG | AGA(BcB)cd | (3(efg) (fa) gede | c2 A2 A2 :|  