> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.ammlabs.io/sitemap.xml
> Use this file to discover available pages before exploring further.
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# Single, EP or album?

You don't choose the release type yourself. The builder sets it from the number of tracks: **1–3 tracks is a Single, 4–6 is an EP, and 7 or more is an Album**. Add or remove tracks and the type updates.

| Tracks | Release type |
|---|---|
| 1–3 | Single |
| 4–6 | EP |
| 7 or more | Album |

The type shows on the release card, for example **Single** or **EP** under the cover on the Releases page.

## Singles

On a one-track single, the release title has to match the track title, and the track's artists match the release's artists. The builder keeps them in sync for you.

## Albums with more than one disc

For a multi-disc album, use the **Disc** control on each track to move it to another disc. Track numbers start again at 1 on each disc. Drag tracks to change the order within a disc.

## Release a single before the album

You can put out a song as a single first and then include it on the album later. To keep its streams, playlist placements and ISRC together, **reuse the same recording** on the album instead of uploading it again as a new one.

1. Create the album and open the track that was released as a single.
2. Under **Previously released**, choose **Previously released**.
3. Click **Or reuse a recording already on the platform**.

![The Previously released switch with the reuse a recording option](https://ammdistro.com/helpdesk/distro-builder-previously-released.webp =1200xauto)

4. Search by title or ISRC, pick the recording and click **Use this recording**.

![The Reuse a recording dialog with a search field](https://ammdistro.com/helpdesk/distro-builder-reuse-recording.webp =800xauto)

The track's details, audio and credits are copied from the single, and the two are linked: "Linked to an existing recording — its ISRC and credits were copied here."

If the single was released with another distributor, enter its existing ISRC instead. See **Previously released music, ISRCs and UPCs**.

Once a recording has been delivered to stores, its details, credits and audio are locked so it stays identical everywhere it appears. That's expected.

## Common questions

### Can I release one song as an EP?

No. A release with fewer than 4 tracks is a single.

### Can a sped-up version go on the same single?

Yes. A single can have up to 3 tracks, so you can add versions like *Sped Up* or *Slowed* as extra tracks. Each one is its own recording with its own ISRC.

**Related:** [Create a release, step by step](https://help.ammlabs.io/en/article/01-create-a-release-step-by-step-z1607w/) · [Previously released music, ISRCs and UPCs](https://help.ammlabs.io/en/article/09-previously-released-music-isrcs-and-upcs-1rgpzwl/) · [Titles, versions and featured artists](https://help.ammlabs.io/en/article/04-titles-versions-and-featured-artists-13arciz/) · [Audio requirements](https://help.ammlabs.io/en/article/03-audio-requirements-m8wqre/)