Develop a piece of music using the specified alphabetic notation system and the provided motif.
X:1
L:1/8
M:2/4
K:Bb
["c' f'"]  
X:1
L:1/8
M:2/4
K:Bb
 f b/ g/ f f | b c' f' c' | f g f f/ d/ | c4 | f b/ g/ f f | b c' f' c' | f' g f f/ d/ | f4 |]  