Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:4/4
K:Bb
['B2 B, F D/E/F', 'BB A/B/c d>e f2 (3dBd (3ece (3geg']  
X:1
L:1/8
M:4/4
K:Bb
 d |"Bb" B<B b2"F" a<f"Eb" g2 |"Bb" f>d"F" e>c"Gm" d<B"F7" A>F |"Bb" B<B b2"Dm" a<f f>g | 
"Bb" f>d"F7" e<c"Bb" B2 B, :| F |"Bb" D/E/F B>D"Eb" E>G B2 |"F7" A/B/c c>c"Bb" d>e f2 | 
"Bb" D/E/F B>D"Eb" E>G"C7" c>B |"F7" A/B/c F>A"Bb" B2 B, || F |"Bb" D/E/F B>D"Eb" E>G BB | 
"F7" A/B/c e/d/c"Bb" d>e f2 |"Bb" (3dBd (3fdf"Cm" (3ece (3geg |"F7" (3fcf (3afa"Bb" b2 B |]  