Develop a musical composition in line with the given structure and theme.
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
['D2DD DFAF dFAF', '(fd).d.d (fd).a.d'  
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
 (3GFE | D2DD DFAF | dFAF dFAF | E2EF GBEG | edcB AGFE | D2DD DFAF | dFAF dFAd | gbag fedc | 
 d2d2d2 :: (ag) | (fd).d.d (fd).a.d | fd (3(ef^g) a2ed | (cA).A.A ceAe | cdef g2ag | 
 (fd).d.d (fd).a.d | (fd) (3(ef^g) a2=gf | gbag fedc | d2d2d2 :|  