Create a composition following the given musical structure and theme.
X:1
L:1/4
M:3/4
K:Bb
['G F']  
X:1
L:1/4
M:3/4
K:Bb
 F | F d c | (B A) G | F G F | (F E) D | E G G | G F D | B, F F | F2 F3 .F3 .F3 | .G3/2 A/ B | 
 (A G) F | B c d | F2 c3 .c3 .c3 | .c2 B | A G A | B2 ||  