When you read that multiple versions or Audiostems are included behind the name of the track it means that we have a zip file as download with different versions of the track (multiple versions e.g. a version without drums or choir) or the separate audiotracks (audiostems e.g. piano track, drum track, strings track etc..) . It´s included and you do not have to pay any additional fees. BUT it´s only included within the Online and the Media License!