Construct tunes that adhere to the specified chord alterations.
'D', 'A', 'D', 'D', 'G', 'A', 'D'  
X:1
L:1/4
M:4/4
K:D
|:"D" A d f3/2 a/ | b a f2 | A d f f/a/ | b a"A" e2 || A c e e/f/ | g f e2 | A c e e/g/ |"D" f e |1 
 d2 :|2 d3/2 B/ |:"D" A d f3/2 e/ | f g f e | d c"G" B3/2 A/ | B d B2 ||"A" c d e3/2 d/ | e f e c | 
 B A"D" d3/2 c/ | d B |1 A2 :|2 d2 |]  