Generate music that aligns with the specified structural requirements.
Only One Section  
X:1
L:1/8
Q:3/8=90
M:6/8
K:Bb
 B2 B F2 F | B2 d f3 | ffg fed | cBc d2 B | B2 B F2 F | B2 d f3 | ffg fed | cBc B3 | d2 d d2 f | 
 f=ef c2 f | f=ef B3 | cdc BAG | FGA B2 F | d2 d d2 f | f=ef c2 f | f=ef B3 | cdc BAG | FGA B3 |]  