Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
Q:1/4=100
M:2/4
K:F
['FA cf/g/ fe ed cB A/B/A/G/', 'ff g/f/e/f/ gg a/g/f/g/ aa']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:F
|: C | FA cf/g/ | fe ed | cB A/B/A/G/ | GF FC | FA cf/g/ | fe ed | cB A/B/A/G/ | A z z :: c | 
 ff g/f/e/f/ | gg a/g/f/g/ | aa ba/b/ | ag gc | ff g/f/e/f/ | gg a/g/f/g/ | aa b/g/f/g/ | f z z :|  