Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:4/4
K:C
['Ac Gc', 'B/c/d c2 cg ec', 'cA A2 cd ed', 'ce e2']  
X:1
L:1/8
M:4/4
K:C
 c3 G Ac Gc | Ac Gc Ad ed | c2 cG Ac Gc | eg dc BG B/c/d | c2 cG Ac Gc | Ac Gc Ad ed | 
 c2 cG Ac G2 | eg dc BG B/c/d || c2 cg ec ge | cG ec dG B/c/d | c2 cg ec g2 | BG G2 Bc dB | 
 c3 g ec ge | c e2 c dG B/c/d | c2 cg ec g2 | BG G2 B2 dB || cA A2 cd ed | cd ec BG B2 | 
 cA A2 cd ed | e/^f/g dc BG B2 | cA A2 cd ed | c2 ec BG B2 | cA A2 cd ed | e2 dc BG B/c/d || 
 ce e2 ce ge | ce ge dG B2 | ce e2 g3 c | BG G2 B2 dB | ce e2 ce ge | ce ge dG B2 | ce e2 g2 gd | 
 e/^f/g dc BG dB ||  