don't use AA track without AA account
don't use AA track without AA account

tanhaiwang/gmusicapi,peetahzee/Unofficial-Google-Music-API,thebigmunch/gmusicapi,dvirtz/gmusicapi,simon-weber/Unofficial-Google-Music-API,simon-weber/gmusicapi,TheOpenDevProject/gmusicapi,nvbn/Unofficial-Google-Music-API,dvirtz/gmusicapi