Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/4
M:4/4
K:G
['d c']  
X:1
L:1/4
M:4/4
K:G
 G/A/ | B G d B | B A A A/B/ | c A d c | B3 G/A/ | B G d B | B A A A/B/ | c c B A | G3 d | d3 d | 
 c d B c | A3 d | d3 d | c d B c | A3 G/A/ | B d c e | d g e c | B2 A2 | G3 G/A/ | B d c e | 
 d g e c | B2 A2 | G3 ||  