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
['F2 G']  
X:1
L:1/8
M:6/8
K:F
 C | F2 G FDE | F2 G Afd | cAF (AG)F | (D3 C) C | FFG FDE | F2 G Afd | cAF (AG)F | (F3 F2) c | 
 (fe)f dcA | fef (df)d | cAF (AG)F | (D3 C3/2) C/C | FFG FDE | F2 G Afd | cAF (AG>)F | (F3 F2) z :|  