Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
['ABA ABg edB', 'a3 age'  
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
"^A dorian" ABA ABg | edB gdB | G3 BAG | dBG AGE | ABA ABg | edB def | gfe fdB | BAG A3 :| a3 age | 
 aba age | g3 gdB | GAB def | a3 age | edB def | gfe fdB | BAG A3 :|  