Compose a melody with the specified chord progression.
'Cm', 'Gm', 'F', 'Gm', 'F', 'Gm', 'F', 'Gm', 'Gm', 'F', 'Gm', 'F', 'Cm', 'F', 'Gm', 'F', 'Cm', 'Gm', 'F'  
X:1
L:1/4
Q:1/4=180
M:2/4
K:Gmin
|:"Cm" c"Gm" B/A/ | G B |"F" A/G/ F |"Gm" G"F" F/E/ |"Gm" D G |1"F" A/B/"Gm" G :|2"Gm" G"F" z |: 
"Gm" G"F" A/B/ |"Cm" c"F" A |"Gm" B G | G"F" A/B/ |"Cm" c"Gm" B |"F" A2 :|  