Compose music by following the designated structure and integrating the suggested musical idea.
X:1
L:1/8
M:2/2
K:Bb
['g2 fb e2', 'c d2 Bf g2 f=a g2 f2'  
X:1
L:1/8
M:2/2
K:Bb
 f | (Bd)(fb)"^tr" g2 fb |"^tr" e2 db"^tr" c2 Bb | (Bd)(fb)"^tr" g2 fb | e2 d2 c3 :: c | 
 FAce"^tr" d2 Bf | Bdf_a"^tr" g2 f=a | bg"^tr" g2 af"^tr" f2 | gedc B3 :|  