Develop a musical piece using the given motif and adhere to the outlined musical structure.
X:1
L:1/4
M:3/2
K:Bb
['f2 d2 (g/a/) (g/f/) g b2 d', 'e d c'  
X:1
L:1/4
M:3/2
K:Bb
 f2 d2 (g/a/) (g/f/) | g b2 d c B | f d c3/2 A/ G/A/ B | A/B/ c f A G F |] D F B/c/ d G2 | 
 g3/2 g/ f e d c | A c f/g/ a d a | b3/2 a/ g/a/ b g f | b a g f b d | g/f/e/d/ c B c F | 
 G/A/ B A/B/ c d/e/ f | g3/2 f/ e d c B |]  