Develop a musical composition in line with the given structure and theme.
X:1
L:1/16
M:2/4
K:F
['f3 d c2 c c c2 D2']  
X:1
L:1/16
M:2/4
K:F
 f3 d c2 c c | c2 D2 F4 | F2 B2 B2 D D | C8 | f3 d c2 c c | c2 D2 F4 | F3 B B2 D D | F8 |]  