Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/4
M:4/4
K:F
['F F']  
X:1
L:1/4
M:4/4
K:F
 F | F F G G | A A F F | B A G A- | A G F/E/ F | G4 | z G B2 | B A2 A | G G F3/2 G/ | 
 A3/2 G/ F E/D/ | E2 C2 | F F A2 | G F G2 | F3 |]  