Design a piece of music by fusing the provided alphabetic indicator and the predetermined tune.
X:1
L:1/4
M:4/4
K:G
['B B']  
X:1
L:1/4
M:4/4
K:G
 G/A/ | B B B A/B/ | c c c B | A A A G/A/ | B B B G/A/ | B B B/A/ A | G2 z G/A/ | B B B/A/ A | 
 G2 z |]  