Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
Q:1/8=130
M:2/4
K:A
['E2 A/G/A/B/ A3 E A/G/A/B/ cB/c/ A3', 'E A/G/A/B/ cB/c/ A3 (3A/B/c/ d>c de']  
X:1
L:1/8
Q:1/8=130
M:2/4
K:A
|: E2 A/G/A/B/ | A3 E | A/G/A/B/ cB/c/ | A3 (3A/B/c/ | d>c de | d3 c | B>A Bc |1 B3 z/ ^D/ :|2 
 B3 c/d/ | e>f ec | A4 | d/c/d/e/ d>c | B3 E | A>c BA | E2 A>B | c2 B>A | A4 :| E2 A>A | A3 E | 
 A/G/A/B/ cB/c/ | A3 (3A/B/c/ | d>c de | d3 c | B>A Bc |1 B3 z/ ^D/ :|2 B3 c/d/ | e>f ec | A4 | 
 d/c/d/e/ d>c | B3 E | A>c BA | e2 A>B | c2 B/A/c/B/ | A4 :|  