Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:2/2
K:D
['f abag fddf gfed cAAf abag fdcd', 'fdge fdfa'  
X:1
L:1/8
M:2/2
K:D
 f | abag fddf | gfed cAAf | abag fdcd | Bgec d2- d :| e | fdge fdfa | Bged cBAg | fdge fdfa | 
 Bgec d2 (de) | fdge fdfa | Bged cBAg | fdge afbg | fdec d2- d |]  