Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
Q:1/8=100
M:4/4
K:G
['BA G2 GF G2 D/G/B/G/ A2 AG', 'G2 GA BcdB edcB ABcA dcBA Bdgf']  
X:1
L:1/8
Q:1/8=100
M:4/4
K:G
 BA | G2 GF G2 D/G/B/G/ | A2 AG A2 D/F/A/c/ | Bdgf edcB | A2 AB A3 c | Bdga bgdB | ceab a2 fd | 
 B/d/g/d/ f/e/d/c/ B2 A2 | G2 GF G2 :| GA | BcdB edcB | ABcA dcBA | Bdgf edcB | A2 AB A3 A | 
 Bdga bgdB | ceab a2 fd | B/d/g/d/ f/e/d/c/ B2 A2 | G2 GF G2 :|  