# Versions
Source: https://docs.aden.space/docs/help/your-music/versions

Every mix, master and edit of a track, side by side on one timeline.
Each audio file you add to a track is a version. Versions stack on a timeline, newest on top, each with its own comments, lyrics, stems and files. Mark one as final and that's the track everywhere it shows.

<Cards>
  <Card title="Add a version" href="/docs/help/your-music/versions/add-a-version">
    Drop a new mix on a track.
  </Card>

  <Card title="Upload limits and audio formats" href="/docs/help/your-music/versions/upload-limits">
    File sizes per plan, lossless and Dolby Atmos.
  </Card>

  <Card title="Organise and delete versions" href="/docs/help/your-music/versions/manage-versions">
    Tags, final version, the timeline, deleting.
  </Card>

  <Card title="Compare versions" href="/docs/help/your-music/versions/compare-versions">
    Flip between mixes at the same spot.
  </Card>

  <Card title="Send a version for review" href="/docs/help/your-music/versions/send-for-review">
    Ask people to approve or request changes.
  </Card>

  <Card title="Write and sync lyrics" href="/docs/help/your-music/versions/lyrics">
    Lyrics per version, timed to the audio.
  </Card>

  <Card title="Copy versions to SoundCloud or a cloud" href="/docs/help/your-music/versions/copy-versions">
    Keep a copy where you already work.
  </Card>

  <Card title="Prove when you made a song" href="/docs/help/your-music/versions/proof-of-creation">
    A legal timestamp on every version.
  </Card>
</Cards>