Develop a melodic piece adhering to the specified musical form.
Only One Section  
X:1
L:1/8
M:2/4
K:Bb
 z F F b | f3 d | b d (3c B c | d d/ f/ B G/ F/ | c4 | z F F b | f3 d | b d (3c B c | 
 d d/ f/ c/ B/ G/ B/ | F4 |]  