Create a musical composition using the given motif and adhering to the specified alphabetical musical form.
X:1
L:1/4
M:2/2
K:F
['a g', 'g a']  
X:1
L:1/4
M:2/2
K:F
 a | g e f g | a g/a/ f a | g f e/f/g/e/ | f3 :: a | a g a b | c' g g a | f g g3/2 f/ | 
 e3/2 d/ c a | a3/2 g/ a b | c' g g a | c f f3/2 e/ | f3 :|  