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
['GDGD BGBG dBgB d2 cB cecA BdBG', 'dBdB cAcA BGdB B2 A2']  
X:1
L:1/8
M:4/4
K:G
|: D2 | GDGD BGBG | dBgB d2 cB | cecA BdBG | AcAF GFED | GDGD BGBG | dBgB d2 cB | cecA BdBG | 
 cAGF G2 :: d2 | dBdB cAcA | BGdB B2 A2 | dBdB cAcA | BGdB B2 A2 | GDGD BGBG | dBgB d2 cB | 
 cecA BdBG | EcAF G2 :|  