Develop tunes following the predetermined chord changes.
'Gm', 'A', 'Gm', 'D', 'Gm', 'Gm', 'Gm', 'A', 'Gm', 'D', 'D7', 'Gm', 'G', 'Am', 'D7', 'G'  
X:1
L:1/8
M:2/4
K:Gdor
 D |"Gm" GD GB | ^cd cB | ^cd dd | d3 e | f>e (3fed | d>^c (3dcB |"A" A^c cc | c4 | 
"Gm" d>^c (3dcB | B>A (3BAG |"D" GA AA | d3- (3ded | (3^cde (3dcB | (3d^cB (3BAG |"Gm" G4- | G3 :: 
 (3Bde |"Gm" f3 e | f3 e | f>e d^c | d3 e | f>e fg | ag fe | fe d^c | d2 d2 |"Gm" d2 d2 | 
"A" ^c3 B |"Gm" (3d^cB (3BAG |"D" A3 d |"^(A7)" (3^cde (3dcB |"D7" (3d^cB (3BAG |"Gm" G4- | G3 :: 
[K:G] A |"G" B3 A | G2 AB |"Am" c2 B2 | A4 |"D7" A>B cd | BG AF |1 Gg fe | dc B :|2"G" G4- | G3 :|  