Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Bb
['c>dc caf c2 c']  
X:1
L:1/8
M:6/8
K:Bb
 F |"Bb" B>cB Bed | dcB B2 g |"Eb" gfe"Bb" dcB |"C7" dcc"F7" [cAF]2 F |"Bb" B>cB Bed | dgf fba | 
"Eb" g2 B"F7" ABc |"Bb" cBB B2"^Fine" || A/B/ |"F" c>dc caf |"C7" =ecd"F" c2 c | cdc cAF | 
"C7" AGG GAB |"F" c>dc caf |"C7" =ecd"F" c2 c |"Gm" d=ef"C7" [gB]fe |"F" [fA]gf"F7" _edc"^D.S." ||  