Design musical compositions that conform to the indicated framework and encompass the proposed musical concept.
X:1
L:1/16
M:2/4
K:Bb
["f' f'"]  
X:1
L:1/16
M:2/4
K:Bb
 d'2 d'2 f' f' f' g' | f'4 d'4 | f' c'2 d' f' f'2 c' | b8 | d'2 c' d' f'2 f' d' | 
 c'2 b c' d'2 f'2 | b c' a g f3 g | g b f g a c' g2 | f8 |]  