Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:4/4
K:Bb
['B2 B>B B2']  
X:1
L:1/8
M:4/4
K:Bb
 F>F |"Bb" B2 B>B B2 A>G | F>G F>D F2 D>F |"F7" F>E E4 E>G |"Bb" G>F F4 F>F | B2 B>B B2 A>G | 
 F>G F>D !fermata!F2 (3F=ED |"F/C" C2 c2 A2"C7" G2 |"F" F4-"F7" !fermata!F2 (3FGA | 
"Bb" B2 B>B B2 d2 | B4 z2 (3FAB |"F" c2 c>c c2"C7" e2 |"F" c-"C7"c-"F"c z2 (3FBc | 
"Bb" d>d d2 z2"Bb7" (3Bcd |"Eb" e>e e2 z2 d>c |"Bb/F" B3 B"F7" c2 F2 |"Bb" d4 z2 (3FBc | 
 d>d d2 z2"Bb7" (3Bcd |"Eb" e>e e2 z2"Edim" =e>e |"Bb/F" f3 e d2"F7" c2 |"Bb" !fermata!B6 |]  