Construct tunes that adhere to the specified chord alterations.
'G', 'D7', 'G', 'G', 'G', 'D7', 'G', 'G', 'D7', 'G'  
X:1
L:1/4
M:3/4
K:G
|:"G" d3 | d2 B | G3- | G D G | B3 | B2 G | D3- | D D G |"D7" A3 | A2 B | c3- | c B c | e3 | 
 e2 d |1"G" B3- | B G B :|2"G" G3- | G2 z |:"G" d B/d/ A/d/ | B3 | d B/d/ A/d/ | B3 | D c B | 
"D7" A3 | D B A |"G" G3 ::"G" d B/d/ A/d/ | B G2 | d B/d/ A/d/ | B3 | D c B |"D7" A3 | D B A | 
"G" G3 :|  