Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:6/8
K:F
['F A,CFA,CA A>GA G2 G/G/ CEB/G/AAG F3']  
X:1
L:1/8
M:6/8
K:F
 F | A,CFA,CA | A>GA G2 G/G/ | CEB/G/AAG | F3 z2 C | BBGCEG | FAccBA/A/ | GGB/d/ccB | A3 z2 |]  