Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
Q:1/4=110
M:6/8
K:C
['B2 c']  
X:1
L:1/8
Q:1/4=110
M:6/8
K:C
 E | A2 A B2 c | B3- B2 B | c2 B A2 B | A2 ^G A3 | B2 B =G2 ^F | E3- E z E | A2 A B2 c | B3 e3 | 
 d2 c B2 c | A2 G/B/ A3 ||  