Compose a musical work in accordance with the provided structure and genre rules.
Only One Section  
X:1
L:1/4
M:3/4
K:Bb
 F | B B F |"^(a)" B B F | G B G | F2 B | c3/2 d/ e | f3/2 e/ d | c3- | c2 B | c3/2 d/ e/c/ | 
 f d B/c/ | d B G | G !fermata!F F | B d f | e"^(b)" d c | B2 | F | B B F |"^(a) var." B2 F | 
 G B G | F2 B | c3/2 d/ e | f3/2 e/ d | c3- | c2 B | c3/2 d/ e/c/ | f d B/c/ | d B G | 
 G !fermata!F F | B d f | e"^(b) var." c A | B2 |]  