OnClickPlayScript

script.Parent.Parent.Parent.Music:Play()

local function onClick()

    script.Parent.Parent.Visible = false

    for i = 1, 0, -0.1 do

        script.Parent.Parent.Parent.Music.Volume = i
        wait(0.07)
    end

    script.Parent.Parent.Parent.Music:Stop()

end

script.Parent.MouseButton1Click:Connect(onClick)
script.Parent.PlayButton.MouseButton1Click:Connect(onClick)