Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:3/4
K:D
['DF AF A2 dc BG B2 ed', 'fg af d2 A2 c2 B2 ef'  
X:1
L:1/8
M:3/4
K:D
 DF | AF A2 dc | BG B2 ed | cB c2 BA | F2 F2 DF | AF A2 dc | BG B2 ed | cB c2 BA | d4 :: fg | 
 af d2 A2 | c2 B2 ef | ge c2 A2 | Bc A2 fg | af d2 A2 | c2 B2 ef | ge cA Bc | d4 :|  