> ## Documentation Index
> Fetch the complete documentation index at: https://developer.ammdistro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Credits

> Songwriters, performers and production credits, and songwriting shares.

Each track lists the people who wrote, performed and produced it.

```json theme={"dark"}
"credits": [
  { "firstName": "Nora", "lastName": "Vance", "roles": ["Composer", "Producer", "Vocals"], "share": 60,
    "ipi": "00123456789", "pro": "ASCAP" },
  { "firstName": "Bo", "lastName": "Reyes", "roles": ["Lyricist"], "share": 40 },
  { "name": "Studio Kid", "firstName": "Sam", "lastName": "Kidd", "roles": ["Mixing Engineer"] }
]
```

## What every track needs

Before a release can be submitted, every track needs:

* at least one **songwriter** (a role such as `Composer`, `Lyricist` or `Songwriter`), with a legal first and last name;
* at least one **performer** (such as `Vocals`, `Guitar` or `Programmer`);
* at least one **production** credit (such as `Producer`, `Mixing Engineer` or `Mastering Engineer`).

One person can hold several roles, as Nora does above.

## Fields

**firstName** `string`

Legal first name. Songwriters need a first and last name.

**lastName** `string`

Legal last name.

**name** `string`

The name to credit, if different from the legal name (for example, a producer name). Needed if you don't send `firstName` and `lastName`.

**roles** `string[]` *required*

One or more roles. The full list is at [GET /delivery/reference/credit-roles](/api-reference/introduction.md). Common spellings are also accepted, such as `writer` or `vocalist`.

**share** `number`

The songwriting share, in percent. Only for people with a songwriting role.

**ipi** `string`

The songwriter's IPI number, 9 to 11 digits.

**pro** `string`

The songwriter's performing rights organisation, for example `ASCAP`, `BMI` or `PRS`.

## Songwriting shares

Give a share for every songwriter on the track, totalling exactly 100, or give none and the share is split evenly. Giving shares for some songwriters and not others is refused, so nobody's publishing is misstated.

## Remixes

A remix track needs a credit with the `Remixer` role for the person who remixed it.

## Artists aren't credits

Primary and featured artists are set through [`artists`](/guides/artists). The `Primary Artist` and `Featured Artist` roles are refused in `credits`.


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