Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/4
Q:1/2=120
M:4/4
K:G
['e d', 'd B']  
X:1
L:1/4
Q:1/2=120
M:4/4
K:G
|: B c | d ^c/d/ e d | B B B A | G F/G/ A G | E2 A B | c/B/A/B/ c/B/A/B/ | f f f e | d ^c/d/ e d | 
 B2 B c | d ^c/d/ e d | B B B A | G F/G/ B d | e3 f | g3/2 g/ f e | e d d2 | d/^c/=c/A/ E F | G2 :: 
 B c | d B e B | d B e B | d B g/f/e/d/ | c3 A/B/ | c A f A | c A f f/g/ | a/g/f/e/ e/d/^c/d/ | 
 e B B B/c/ | d B e B | d B e B | g f/g/ a/g/f/g/ | e2 e f | g3/2 g/ f e | e d d2 | 
 d/^c/=c/A/ E F | G2 :|  