Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:2/4
K:Bb
['BF FF ||[M:3/4] FF FF F!fermata!F ||[M:2/4]', 'DD DD', 'DD/C/ [M:2/4] DC B,B, B,B, B,!fermata!B, ||[M:3/4]', '', 'B,B, B,B, B,2', '', '']  
X:1
L:1/8
M:2/4
K:Bb
 BF FF ||[M:3/4] FF FF F!fermata!F ||[M:2/4] BF DD | DD DD ||[M:3/4] (3:2:4BBB/F/ BF DD/C/ || 
[M:2/4] DC B,B, | B,B, B,!fermata!B, ||[M:3/4] CB, B,B, B,2 ||[M:2/4] DC C2 | CB, B,B, | B,B, B,2 | 
 CB, B,B, | B,B, B,2 | B,4 |]  