Construct tunes that adhere to the specified chord alterations.
'G', 'G', 'Em', 'Em', 'D7', 'G', 'G', 'Em', 'D7', 'G', 'Em', 'Em', 'D', 'D', 'Em', 'C', 'Em', 'C', 'Em', 'G', 'D7', 'G'  
X:1
L:1/8
M:4/4
K:G
"^A" (3DEF |"G" G2 GF GABc |"G" dBeB dBAG |"Em" BEED EFGA |"Em" BGAF"D7" GFED |"G" G2 GF GABc | 
"G" dBeB dBAG |"Em" BEED EFGA |"D7" BGAF"G" G2 :|"^B" B2 |"Em" Beed e3 f |"Em" geaf gfed | 
"D" Add^c d3 e |"D" fdaf gfed |"Em""C" Beed e3 f |"Em""C" geaf gfed |"Em""G" BAGF EFGA | 
"D7" BGAF"G" G2 :|  