Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:3/4
K:F
['a>g f>e d>c BA G>F E>F', 'e>f de =c>A A>B AG FE', 'c>c B>d', 'f4 e>e e3 A A>B AG FE']  
X:1
L:1/8
M:3/4
K:F
 c2 a>g f>e | d>c BA G>F | E>F GA B>c | d>c AB c>c | c>a a>g f>e | d>c BA G>F | E>F Gd c>E | 
 F2 f4 ::{A} d>^c de f>g | e>f de =c>A | A>B AG FE | DE FG A>A | d>^c de fg | e>f de =c>A | 
 A>B AG FE | D2 d4 :: c2 f2 c>c | B>d B4 | G>c e2 c>e | f>g a>f c2 | c2 f2 c>c | B>d g4 | 
 G2 e>g c>e | f2 f4 :: f>f f4 | e>e e3 A | A>B AG FE | D>E FD E2 | f>f f4 | e>e e3 A | A>B AG FE | 
 D2 d4 :|  