Construct tunes that adhere to the specified chord alterations.
'A', 'D', 'A', 'D', 'E7', 'A', 'D', 'A', 'E7', 'A', 'A', 'D', 'E7', 'A', 'D', 'A', 'E7', 'A'  
X:1
L:1/8
M:2/2
K:A
 E2 |"A" A3 B cBAG |"D" F4 f4 |"A" e2 c2"D" dcBA |"E7" B6 E2 |"A" A3 B cBAG |"D" F4 f4 | 
"A" e2 c2"E7" dcBc |"A" A6 :: e2 |"A" a3 b c'bag | a2 e4 c2 | a2 c2"D" dcBA |"E7" B6 E2 | 
"A" A3 B cBAG |"D" F4 f4 |"A" e2 c2"E7" dcBc |"A" A6 :|  