Develop a musical composition centered around the provided motif while maintaining the appropriate form.
X:1
L:1/4
Q:1/4=120
M:4/4
K:Bb
['', 'FS B3/2 A/ G A/B/ c3/2 B/', 'd e'  
X:1
L:1/4
Q:1/4=120
M:4/4
K:Bb
"^Moderate""^A" |: FS | B3/2 A/ G A/B/ | c3/2 B/ A F | G2 A2 | B2 z :|"^B" | d | e d e f | 
 g f e z/ d/ | e d c B | d c BS A |]  