Compose a piece by incorporating the set musical pattern in its alphabetical form along with the given melodic subject.
X:1
L:1/8
M:3/4
K:F
['ag f3 A (c2 B2) B2', 'g2 aa f2 dG gg e2 cG', 'f2 agfe']  
X:1
L:1/8
M:3/4
K:F
 c2 | ag f3 A | (c2 B2) B2 | gf e3 G | (B2 A2) Ac | ag f3 A | (c2 B2) B2 | gfedce | f2 z2 :: 
[K:C] g2 | aa f2 dG | gg e2 cG | ff d2 BG | cdef g2 | aa f2 dG | gg e2 cG | ff d2 AG | c2 z2 :: 
[K:F] c2 | f2 agfe | (ed) b3 g | eGBe g2 | fAcf a2 | f2 agfe | ed b3 g | eGBege | f2 z2 :|  