Design a piece of music by fusing the provided alphabetic indicator and the predetermined tune.
X:1
L:1/8
M:4/4
K:G
['G2 GF', 'G4 gagf gbag fgfe fdef gdBG ABce']  
X:1
L:1/8
M:4/4
K:G
|: G2 GF GBAG | FGFE FDEF | G2 GF GABd | cBAG FE (3FED | G2 GF GABd | cBAG FGAF | GABd cAFA | 
 GAGF G4 :: gagf gbag | fgfe fdef | gdBG ABce | dAFE DE (3FED | gagf gdBG | FAGF GABd | cedc BAGB | 
 AGFD G4 :|  