Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:C
['G2 g fdB ecg dBG EGc BGB', 'fdA GBd gdB A^ce a2 g fAe', 'G2 g', 'AFD G2 g fed efg dBG ecA']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:G] deae e a ue ca cage ve e ea[Q:1/8=160] D | G2 g fdB | ecg dBG | EGc BGB | ABG FED | 
 G2 g fdB | ecg dBG | EGc BGB |1 AEF G2 :|2 AEF GA || G | FAd fdA | GBd gdB | A^ce a2 g | fAe def | 
 g2 b fdB | ecg dBG | AGc BGB |1 AEF GA :|2 AEF G3 |]"^O'Farrell volume 2 setting" D | G2 g fed | 
 efg dBG | ecA dBG | F2 G AFD | G2 g fed | efg dBG | ecA dBG | DEF G2 :| g | f2 g afd | e2 f g3 | 
 B2 c dBG | F2 G AFD | G2 g fed | efg dBG | ecA dBG | DEF G2 :|  