Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
Q:1/4=130
M:2/4
K:G
['GA/G/ FG A=f', 'G3 d dd/e/ fg =fd/c/ BA/G/ G/F/G/B/']  
X:1
L:1/8
Q:1/4=130
M:2/4
K:G
"_vb" D | GA/G/ FG | A=f dc/A/ | G/F/G/B/ (A{BA}G) | FD DD | GA/G/ FG | A=f d (3A/B/c/ | dc/A/ GG | 
 G3 || d | dd/e/ fg | =fd/c/ BA/G/ | G/F/G/B/ A/G/F/E/ | F2 DD | GA/G/ FG | A=f d/A/B/c/ | 
 dc/A/ GG | G3 |]  