Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
M:6/8
K:G
['z B d2 B g2 Td>cB A', 'G2 (e/f/) Tg>fe d>cB c>dB A2 (e/f/)', 'G2 z GBd Bgb DFA cfa g', 'G2 (e/f/) g(a/g/f/e/) dgB c>dB TA2 f', 'z B(d/c/)B g(b/a/g) A(c/B/)A f(a/g/)f (g b2)', '(e/f/) (e/d/c/B/A/G/) c>dB A(f/g/a/f/) (g/f/e/f/g/)e/ (d/c/B/c/d/)B/ g3']  
X:1
L:1/8
M:6/8
K:G
"_Slow" z | B d2 B g2 | Td>cB A c2 | TB>cd (e/f/g)e | Td3 G2 :: (e/f/) | Tg>fe d>cB | 
 c>dB A2 (e/f/) | g>fe (d<B)d | Tg3 d2 (e/f/) | g(a/g/f/e/) dgG | c>dc/B/ ABc | TB>cd (e/f/g)e | 
 Td3 G2 :: z | GBd Bgb | DFA cfa | g b2 e g2 | Td3 G2 :: (e/f/) | g(a/g/f/e/) dgB | c>dB TA2 f | 
 (g/f/e/f/)g dBd | g3 d2 (g/a/) | b>ag (e/f/g)e | (d<B)G A>Bc | B d2 B g2 |{e} Td3 G2 :: z | 
 B(d/c/)B g(b/a/g) | A(c/B/)A f(a/g/)f | (g b2) (e g2) | (d/e/d/c/B/)A/ G2 :: (e/f/) | 
"^*1" (g/f/e/d/c/B/)"^*1" (e/d/c/B/A/G/) | c>dB A(f/g/a/f/) | (g/f/e/f/g/)e/ (d/c/B/c/d/)B/ | 
 g3 d2 (g/a/) | (b/a/g/a/b/)g/ (a/g/f/g/a/)f/ |"^*1" (g/f/e/d/c/B/) ABc | (B/c/d)B (e/f/g)e | 
 Td3 G2 :|  