Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:3/4
K:D
['a4 fd Aceg f2', 'cA E^GBd c2']  
X:1
L:1/8
M:3/4
K:D
 a4 fd | Aceg f2 | a4 fd | Aceg f2 | b2 b2 ge | a2 a2 fd | ef g2 f2 |{f} e6 :: e4 cA | E^GBd c2 | 
 e4 cA | E^GBd c2 | a4 fd | Aceg f2 | a4 fd | bgec d2 |"^F" (3bag fedc | d6 :| 
"^F" !fermata!gebgec | d6 :|  