Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
M:4/4
K:G
['B>G (3GGG D>G (3GGG', '(3Bcd e>f']  
X:1
L:1/8
M:4/4
K:G
 B>G (3GGG D>G (3GGG | B>d (3def g>ed<c | B>G G2 D>G G2 | B<ed>B (3ABA (3edc | 
 B>G (3GGG D>G (3GGG | (3Bcd e>f g2 g>a | b>ga>f g2 (3fed | e>gd<B A2 || e2 e>f e>dB<A | 
 (3Bcd e>f g>ed<c | B>G (3GGG D>G (3GGG | B<ed>B A2 B>d | (3eee e>f e2 d>c | (3Bcd e>f g>fg>a | 
 b2 (3agf g>fe>d | e<gd>B A2 ||  