Develop a musical piece using the given theme and incorporating the letter-based structure provided.
X:1
L:1/8
M:6/8
K:Ador
['A2 G', 'ged cAB', 'd cAG']  
X:1
L:1/8
M:6/8
K:Ador
 cBc A2 G | EcB cde | dcA A2 G | Ade fed | cBc A2 G | EcB cde | dcA AGE |1 GED D2 B :|2 GED D2 f || 
 g3 ged | cAB c2 d | e2 a age | ed^c def |1 g3 ged | cAB cde | fed cAG | EAG A2 f :|2 gba ged | 
 cAB cde | fed cAG | EAG A2 B |"^Version 2:" | cBc A2 G | EcB cde | ded cAG | Add ded | cBc A2 G | 
 EcB cde ||1 =fed ecA | cAG A2 B :|2 =fed e2 d | cAG A2 f |: gea ged | cAB c2 d | eaa age | 
 ed^c def | gea ged | cAB cde | =fed e2 d | cAG A3 :|  