Having issues fading out audio and play them again without duplication. I wondered if I'm using the pixi.sound library wrong as I've been setting a let music = PIXI.Loader.shared.resources[audio_name].sound and fading out that audio using it's volume. Then I create a new object with a variable for the same sound and now I get two versions of the audio... is there a common pattern for playing and stoping audio to stop duplication?