Compose a piece of music that adheres to the specified alphabetical framework and includes the provided theme.
X:1
L:1/8
Q:1/8=232
M:4/4
K:Bb
['D/E/F BF GE']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:Bb
|: F | B2 dB fB dB | Gc ec gc ec | A/c/f a>f bg af | =e/f/g c>e fF FF | B2 dB fB dB | Gc ec gc ec | 
 A/c/f a>f bg af | =e/f/g c>e fF FF | D/E/F BF GE EG | FD DF EC CE | D/E/F BF GE ce | 
 d/c/B FA BB, B,E | D/E/F BF GE EG | FD DF EC CE | DF Bb ac cg | fB Ae dB B :|  