ComfyUI Node
Extend Music · V5
Extend Music OpenAPI Specification json { "code": 200, "msg": "All generated successfully.", "data": { "callbackType": "complete", "task_id": "2fac 9f72", "data": [ { "id": "e231 - - - - 8cadc7dc", "audio_url": "https://example.cn/ .mp3", "stream_audio_url": "https://example.cn/ ", "image_url": "https://example.cn/ .jpeg", "prompt": "[Verse] Night city lights shining bright", "model_name": "chirp-v3-5", "title": "Iron Man", "tags": "electrifying, rock", "createTime": "2025-01-01 00:00:00", "duration": 198.44 }, { "id": "bd15 1873", "audio_url": "https://example.cn/ .mp3", "stream_audio_url": "https://example.cn/ ", "image_url": "https://example.cn/ .jpeg", "prompt": "[Verse] Night city light
Extend Music · V5
- audio
- url
- all_urls_json
- task_id
- raw_json
- credits_consumed
- credits_left
◄audio_ide231****-****-****-****-****8cadc7dc►
◄promptExtend the music with more relaxing notes and a gentle bridge section►
◄styleClassical►
◄titlePeaceful Piano Extended►
◄continue_at60.00►
◄negative_tagsHeavy Metal, Upbeat Drums►
◄vocal_genderm►
◄style_weight0.65►
◄weirdness_constraint0.65►
◄audio_weight0.65►
◄persona_idpersona_123►
◄persona_modelstyle_persona►
◄lyrics[Verse]
Keep the melody flowing
Into a gentle bridge
[Chorus]
Let the piano rise and fall►
◄variety1►
◄instrumentalfalse►
◄timeout_seconds1200►
◄callback_url►
CategoryKIE Next/Audio/Suno/Music Generation
Inputs (17)
| Name | Type | Default | Description |
|---|---|---|---|
| audio_id | STRING | e231****-****-****-****-****8cadc7dc | Unique identifier of the audio track to extend. Required for all extension requests. |
| prompt | STRING | Extend the music with more relaxing notes and a gentle bridge section | Lyrics for the extended audio. Optional. - Used as lyrics only when `lyrics` is not provided. If `lyrics` is present, `prompt` is not used as lyrics. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters. - Not required. Source audio (`audio_id`) is enough to generate. - Do not pass this parameter when `instrumental` is `true`. |
| styleopt | STRING | Classical | Music style specification for the extended audio. Optional. - Not required. Source audio (`audio_id`) is enough to generate. - Character limits by model: - **V4**（Discontinued）: Maximum 200 characters - **V4_5 & V4_5PLUS**（Discontinued）: Maximum 1000 characters - **V4_5ALL**（Discontinued）: Maximum 1000 characters - **V5_5 & V5**（Discontinued）: Maximum 1000 characters - **V6, V6_MINI, and V6_WILD**: Maximum 1000 characters - Should typically align with the original audio's style for best results. |
| titleopt | STRING | Peaceful Piano Extended | Title for the extended music track. Optional. - Maximum 100 characters. - Displayed in player interfaces and filenames. |
| continue_atopt | FLOAT | 60.00-10000–10000 | The time point (in seconds) from which to start extending the music. - Value range: greater than 0 and less than the total duration of the generated audio. - Specifies the position in the original track where the extension should begin. |
| negative_tagsopt | STRING | Heavy Metal, Upbeat Drums | Music styles or traits to exclude from the extended audio. Optional. Use to avoid specific undesired characteristics. |
| vocal_genderopt | COMBO | m | Vocal gender preference. Optional. 'm' denotes a male voice, and 'f' denotes a female voice. In practice, this parameter only influences the probability and does not guarantee strict adherence to the gender instruction. This parameter is not required if `instrumental` is set to `true`. |
| style_weightopt | FLOAT | 0.650–1 | Strength of adherence to the specified style. Optional. Range 0–1, up to 2 decimal places. |
| weirdness_constraintopt | FLOAT | 0.650–1 | Controls experimental/creative deviation. Optional. Range 0–1, up to 2 decimal places. |
| audio_weightopt | FLOAT | 0.650–1 | Balance weight for audio features vs. other factors. Optional. Range 0–1, up to 2 decimal places. |
| persona_idopt | STRING | persona_123 | Persona ID or Voice ID to apply to the generated music. Optional. Use this to apply a specific persona style to your music generation. To generate a Persona ID, use the [Generate Persona](https://docs.kie.ai/suno-api/generate-persona) endpoint to create a personalized music Persona based on generated music. To generate a Voice ID, use the [Generate Voice](https://docs.kie.ai/suno-api/suno-voice-generate) endpoint. |
| persona_modelopt | COMBO | style_persona | The persona model is only applicable to the V5 (deactivated), V5.5 (deactivated), V6, V6_MINI, and V6_WILD models. |
| lyricsopt | STRING | [Verse] Keep the melody flowing Into a gentle bridge [Chorus] Let the piano rise and fall | Lyrics for the extended audio. Optional. - Takes priority over `prompt` as lyrics. If omitted, `prompt` is used as lyrics when provided. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters. - Not required. Source audio (`audio_id`) is enough to generate. - Do not pass this parameter when `instrumental` is `true`. |
| varietyopt | INT | 10–4 | Controls the diversity and stylistic variation of generated results. Optional. Integer range 0–4, default 1. - **`0`**: off (exact style) — fully off, strictly the same style - **`1`**: normal (balanced variety) — default, balances stability and diversity - **`2`**: high (distinct styles) — produces results with clearly different styles - **`3`**: extra (bold exploration) — higher variation, encourages bold exploration of different styles - **`4`**: max (unreasonably varied) — maximum diversity; results may differ in style very significantly |
| instrumentalopt | BOOLEAN | false | Indicates whether it is an instrumental track. If true, passing the `lyrics`, `prompt`, and `vocal_gender` parameters is prohibited. |
| timeout_secondsopt | INT | 120030–7200 | — |
| callback_urlopt | STRING | Optional KIE callback URL. Leave empty for normal ComfyUI use. |
Outputs (7)
| Name | Type | Description |
|---|---|---|
| audio | AUDIO | — |
| url | STRING | — |
| all_urls_json | STRING | — |
| task_id | STRING | — |
| raw_json | STRING | — |
| credits_consumed | FLOAT | — |
| credits_left | FLOAT | — |