Create a set of chord combinations that enhance the harmony of the submitted musical composition.
|: ff f/d/B/d/ | ff f/d/B/d/ | e>e d>d | cc B2 :: cc FF | Bd f2 | 
 e>e d>d | cc B2 :|  
X:1
L:1/8
M:2/4
K:Bb
|:"Bb" ff f/d/B/d/ | ff f/d/B/d/ |"Eb" e>e"B" d>d |"F7" cc"Bb" B2 ::"F7" cc FF |"Bb" Bd f2 | 
"Eb" e>e"Bb" d>d |"F7" cc"Bb" B2 :|  