Adaptive music script dosent stop after death?

So i have this script that plays the low health music when you get damaged, But for some reason if you regenerate health the music stops and plays the normal music but if you die the low health music dosent stop,

i also want to add music that plays after your death for 4 seconds then switch to normal music if you can do that

LocalScript:

local player = game.Players.LocalPlayer
local char = player.CharacterAdded:Wait()
local cam = game.Workspace.CurrentCamera

while wait(0.2) do
    if char.Humanoid.Health <= 40 then
        game.Workspace.LowHealth.Playing = true
        game.Workspace.NormalHealth.Playing = false
        wait(4)
    else
        game.Lighting.ColorCorrection.Contrast = 0.2
        game.Workspace.LowHealth.Playing = false
        game.Workspace.NormalHealth.Playing = true
        cam.FieldOfView = 100
    end
end
player.CharacterAdded:Connect(function(character)
    char = character
end)