Compose a piece adhering to the given musical structure and theme.
X:1
L:1/4
Q:1/2=100
M:4/4
K:D
['d c B A G F E', 'f f'  
X:1
L:1/4
Q:1/2=100
M:4/4
K:D
|: d c B A | G F E D | D/E/F/G/ A D | (3(F/G/F/) E E3/2 A/ | d c B A | G F E D | D/E/F/G/ A f | 
[M:2/4] e c |[M:4/4] e d d2 :: f f/f/ f f | g/f/e/d/ f | f f/f/ f f | e/d/c/B/ A2 | f f/f/ f f | 
 g/f/e/d/ f2 | f g/f/ e f/e/ | d2 d2 :|  