Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/4
M:3/4
K:Bb
['F/A/ B']  
X:1
L:1/4
M:3/4
K:Bb
 F/A/ B d | c A B | F/A/ B c/A/ | c A B | F/A/ B d | c d/e/ f | g/f/ e d/B/ | c A B |]  