Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/4
Q:1/4=160
M:3/4
K:G
['G F', 'F ^E F']  
X:1
L:1/4
Q:1/4=160
M:3/4
K:G
 B,3 | ^A, B, D | G3- | G F G |"^5" A G F | G B, D | F3- | F z z |"^9" C3 | B, C D | F3- | F ^E F | 
"^13" G F ^E | F C F | B,3 | D ^C =C |"^17" B,3 | ^A, B, D | G3- | G F G |"^21" A G F | G B, D | 
 E3- | E z z |"^25" E3 | A c e | d3- | d c B |"^29" A G F | E F A | G3- | G z z ||"^33" B ^A B | 
 g f3/2 e/ | g3- | g f e |"^37" B ^A B | e d3/2 c/ | F3- | F z z |"^41" F ^E F | e d ^c | e3- | 
 e d c |"^45" F ^E F | c B3/2 A/ | G3- | G z z |"^49" B ^A B | g f3/2 e/ | g3- | g f e | 
"^53" B ^A B | e d3/2 c/ | E3- | E z z |"^57" E ^D E | c B A | G3- | G F ^E |"^61" F A c | e2 d | 
 G3- | G3 |]  