Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/16
Q:1/4=60
M:2/4
K:Bb
['F>F!p! B2>c2 d>Bf>d c2F>F F2f>f A2>c2 f2>e2', 'B2B>B B2c>d B2B>B']  
X:1
L:1/16
Q:1/4=60
M:2/4
K:Bb
 F>F!p! | B2>c2 d>Bf>d | c2F>F F2f>f | A2>c2 f2>e2 | d2B>B B2d>!f!=e | f2g>=e f2g>e | f2c2 z2 f>f | 
 (3d=ef (3gab f2a>g | f2f>f f2 ::!p! f>f | G2>G2A2>A2 | B3A/G/ F2cc | d>c B>cd>e | c2F>F F2F>F | 
 B2>c2 d>Be>c | f2 f4 f>f | f>ge>f d>ec>d | B2B>B B2c>d | B2B>B B2c>d | B2B>B B2B2 | 
 B4- !fermata!B2 :|  