/// <summary>
/// Applies a particular Jfx to this JSong.
/// </summary>
/// <param name="effect">The Jfx to be applied.</param>
public void ApplyJfx(Jfx effect)
{
cached = properties;
properties.Volume += effect.ChangeInVolume;
properties.Pitch += effect.PitchChange;
properties.Tempo += effect.TempoChange;
}
/// <summary>
/// Sets the properties of the Jsong
/// to the properties it previously had.
/// </summary>
public void Revert()
{
properties = cached;
}