Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/16
M:2/4
K:G
['', 'GBdB cBAG', 'gfed cBcd', 'c2c2 agab agfe f2dd d2(ef) :|2,4 efge']  
X:1
L:1/16
M:2/4
K:G
 A2 |: GBdB cBAG | cBcd |1,3 c2(BA) | GBdB cBAG | d2DD D2D2 :|2,4 efge | dedc BGAF | G2G2 G2 :: 
 d2 |: gfga gfed | cBcd |1,3 c2c2 | agab agfe | f2dd d2(ef) :|2,4 efge | dedc BGAF | G2G2 G2 :|  