Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:6/8
K:D
['DEF GAG GFG', 'efg aba ged'  
X:1
L:1/8
M:6/8
K:D
 FAD DEF | GAG GFG | ABA Aef | gec AGEFAD DEF | GAG GFG | Aaf ged | cBc d3 :| afd dfa | bge efg | 
 aba ged | cAA A3 ||1 afd dfa | bge efg | aba ged | cBc d3 :|2 dfe dAF | GBe efg | aba ged | 
 cBc d3 ||  