Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
Q:1/4=120
M:2/4
K:G
['D>D EF G3 B A>G', 'GA BA/B/ cB A2 BG']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:G
 D>D EF | G3 B | A>G FG | A>B A2 | D>D EF | G3 B | A>G FE | D4 :| GA BA/B/ | cB A2 | BG FG | 
 BA FD | GA BA/B/ | cB A2 | BG FA | G4 :|  