Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:G
['GFGe dGBd', 'dg g2 bagb']  
X:1
L:1/8
M:4/4
K:G
 A | GFGe dGBd | edBG AGEF | GFGe dGBd | gbaf gedB | GFGe dGBd | edBG AGEF | GFGe dGBd | 
 gbag eg g2 || dg g2 bagb | agbg agef | dg g2 bagb | c'bag eg g2 | dg g2 bagb | agbg ageg | 
 bagf gfed |1 egfa gedB :|2 egfa g2 g2 |]  