Construct tunes that adhere to the specified chord alterations.
'Em', 'Am', 'B7', 'Em', 'B7', 'Em', 'Em', 'D', 'Em', 'D', 'Em', 'B7', 'Em'  
X:1
L:1/8
M:2/2
K:Emin
 GA |"Em" (3BcB (3ABA (3GAG (3FGF | EFGA B2 (ef) | gfed edcB |"Am" cBAG"B7" A2 GA | 
"Em" (3BcB (3ABA (3GAG (3FGF | EFGA B2 (ef) | gfed"B7" Bg (3fgf |"Em" e2 E2 E2 :: ga | 
"Em" babg efga | babg e2 fe |"D" d^cde fefg | afdf a2 (gf) |"Em" eBeg"D" fdfa |"Em" gfga bgef | 
 gfed"B7" Bg (3fgf |"Em" e2 E2 E2 :|  