Create music based on the specified alphabetic description of the musical arrangement and the given pattern.
X:1
L:1/4
M:4/4
K:G
['B G', 'B G']  
X:1
L:1/4
M:4/4
K:G
 D/ | G G/A/ B G | c c/B/ A c | B G G/A/B/c/ | d A F D | G G/A/ B G | c c/B/ A c | B G F/G/A/F/ | 
 G2 G3/2 :: A/ | B d d c/B/ | A c B A | B G G/A/B/c/ | d A F D | G G/A/ B G | c c/B/ A c | 
 B G F/G/A/F/ | G2 G3/2 :|  