Design a piece of music by fusing the provided alphabetic indicator and the predetermined tune.
X:1
L:1/8
M:3/4
K:G
['BA G2']  
X:1
L:1/8
M:3/4
K:G
 B2 | BA G2 d2 | eg g2 B>B | d>c B3 c | BA G2 z B | BA G3 d | eg g2 B>B | d>G B3 D | EG G2 z G | 
 GG g3 g | fBB e2 e | d3 edc | Be d3 D | BA G2 d2 | egg B2 B | dG B3 D | EG G3 z ||  