suno_underpainting
Add AI-generated instrumental accompaniment to your uploaded vocal track, turning an acapella into a full musical arrangement.
Instructions
Add AI-generated accompaniment/instrumental background to uploaded audio.
Takes your uploaded vocal track and adds an AI-generated instrumental
accompaniment beneath it (underpainting = adding music under vocals).
Use this when:
- You have a vocal recording and want to add music behind it
- You want to give an acapella track a full musical arrangement
- You need to add instrumental backing to existing vocals
Returns:
Task ID and the audio with accompaniment added.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| audio_id | Yes | ID of the uploaded audio to add accompaniment to. Must be uploaded via suno_upload_audio. | |
| underpainting_start | No | Start time in seconds for adding accompaniment. Default is 0. | |
| underpainting_end | No | End time in seconds for adding accompaniment. Must be less than total song duration. | |
| model | No | Model version to use. | chirp-v5-5 |
| callback_url | No | Webhook callback URL for asynchronous notifications. |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |