Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/16
Q:1/8=120
M:3/8
K:Bb
['F2 B2BABA B2d2f2 f2^f2a2 c4 (cd) edgfed', 'dB AcecAc BABcde fgabag |{g} f4 (gf)']  
X:1
L:1/16
Q:1/8=120
M:3/8
K:Bb
 F2 | B2BABA | B2d2f2 | f2^f2a2 | c4 (cd) | edgfed | cdedcB | A>gf>ed>c |{c} B4 :: dB | AcecAc | 
 BABcde | fgabag |{g} f4 (gf) | ede"^c" cdc | e>gf>ed>c | BdfecA |{c} B4 :|  