Select the source audio candidate
Use the audio_id of the generated track you want to develop. Keep the original recording available to review the continuation in its musical context.
Extend Music continuation API
Select an existing generated candidate and use its audio_id to create a continuation. Choose mv and a simple or custom workflow: simple mode starts from the source settings, while custom mode supplies the prompt, style, title and continue_at position for the next musical section. Listen to the completed continuation with the original track, review the transition and retain the result you want to develop further.
Vidgo provides access to Extend Music through PoYo’s music-tool integration. Model and tool names and trademarks belong to their respective owners.Explore the Extend Music Task
Choose the track you want to continue, retain its audio ID and listen for the intended transition point. Select the version and mode in the existing task, prepare the custom fields when needed and compare the returned result with the source.
Extend Music Source Tracks and Extension Parameters
Provide audio_id and mv in every request. With default_param_flag: false, use the source-based workflow; with true, also provide prompt, style, title and continue_at in seconds. Choose a continuation point within the original track and describe the next section. The task documentation lists V4 prompt/style limits of 3,000/200 characters and V4.5, V4.5 All, V4.5 Plus and V5 limits of 5,000/1,000. Titles use 80 characters for V4 and V4.5 All, and 100 for V4.5, V4.5 Plus and V5.
| Model / task | Input and workflow |
|---|---|
| Extend Music | Extend or modify existing music tracks by creating sequels based on source audio. Supports custom mode with full parameter control or simple mode inheriting original parameters. Specify continuation points and maintain style consistency across extensions up to 8 minutes. |
Extend Music: Continuation Points and New Musical Section Controls
Use the input required by this operation and inspect the returned result together with its source. The guidance below explains how to prepare the request, review the output and retain the information needed for the next creative or development step.
{
"model": "extend-music",
"input": {
"audio_id": "cb660e3f-f201-495e-8a25-2b413518a725",
"mv": "V5",
"default_param_flag": true,
"continue_at": 150,
"prompt": "A gentle instrumental continuation with the nylon guitar motif, soft bass and brushed percussion, gradually resolving into a quiet harbor evening.",
"style": "Gentle acoustic folk instrumental, nylon guitar, soft upright bass, brushed percussion, reflective evening atmosphere",
"title": "Harbor Paper Lanterns Continued"
}
}Choose the continuation mode
Set default_param_flag around whether the request should start from source settings or use the supplied custom brief. Prepare the fields required by the selected mode before submitting.
Identify the transition point
In custom mode, set continue_at in seconds within the source track. Listen around that position and describe the next musical section so the result can be reviewed against a clear transition goal.
{
"model": "extend-music",
"input": {
"audio_id": "483b67b8-0433-4000-adde-079b765859a6",
"mv": "V5",
"default_param_flag": true,
"continue_at": 45,
"prompt": "[Verse]\nLeave the rain upon the street\nFind the light beneath our feet\n[Chorus]\nOpen up the day again\nLet the sunlight wander in",
"style": "Warm indie folk, acoustic guitar, light hand percussion, clear lead vocal, hopeful tone",
"title": "Windows After Rain Continued"
}
}Guide the new section
Prepare the next lyrics or musical prompt with style and title. Use supported preferences when they help describe the intended direction, then review the new section against the complete brief.
Review and retain the continuation
Read every completed candidate, listen with the original and inspect its actual duration. Save the selected audio URL and identifiers for the next creative step.
Extend Music Instrumental and Vocal Song Extension Examples
The instrumental source continues from 150 seconds, while the vocal source continues from 45 seconds with a new verse and chorus brief. Both V5 custom requests retain their actual audio_id, style and title. Listen to each returned candidate around the chosen continuation point and through the new passage.
Musical direction
A gentle instrumental continuation with the nylon guitar motif, soft bass and brushed percussion, gradually resolving into a quiet harbor evening.
Musical direction
[Verse] Leave the rain upon the street Find the light beneath our feet [Chorus] Open up the day again Let the sunlight wander in
Music Workflow Uses for Extend Music
Use the audio_id of the generated candidate you intend to continue and keep the original audio URL for listening. For custom work, prepare the continuation position, next lyrics or musical direction, style and title before submitting.
Continuing a song draft
Choose the generated song and the point where the next section should begin. Prepare the custom brief and review the returned continuation as part of the developing song.
Developing an instrumental section
Select the source candidate and describe the next musical direction. Listen to the resulting section with the original arrangement before choosing the next project version.
Exploring a new ending
Listen to the source and select a continuation point near the intended ending. Prepare the next section’s mood and phrasing, then review the complete returned result.
Refining a transition
Keep the source audio and identify the position to continue. Adjust the custom prompt or style around observed results and compare the next candidates at the same transition.
A continuation for a scene concept
Prepare the source track and the next scene’s musical direction. Review the extended result with the planned scene before using it in the presentation draft.
Organizing successive music versions
Retain the source and each selected continuation with their IDs and request settings. Use those associations when reviewing how the song or instrumental idea develops.
Extend Music Input Requirements and API Pricing
The price table reads the current catalog rate for a new processing request in this task. Preparing source music or submitting another music operation uses that operation’s own price. Review the current rate before submitting, retain the returned processing task ID and use the completed result when planning the next step.
| Tool | Provider | Operation | Input | Result type | Current rate |
|---|---|---|---|---|---|
| Extend Music | PoYo | Music extension | Existing audio_id, mv and mode-specific continuation fields | Music continuation candidates | $0.1 / request |
How to Use Extend Music on Vidgo
Prepare the source input, then review the completed result and its next use.
Test online
Test the prepared request online
Open the task with the source audio ID and select a version. Choose simple mode or fill every custom continuation field, review the current request rate and submit. Listen to the complete returned result with the source, focusing on the intended transition and new section.
Why Use Extend Music on Vidgo
Use the existing task, current request rate and API documentation to connect source preparation, result review and the next music workflow.
Source preparation and result review
Prepare the input required by the operation
Use the audio_id of the generated candidate you intend to continue and keep the original audio URL for listening. For custom work, prepare the continuation position, next lyrics or musical direction, style and title before submitting.
Inspect the completed output
Compare the completed result with the original around continue_at and listen through the new section. Review the phrasing, rhythm, style and the returned duration. Use negative_tags to describe musical elements to reduce and vocal_gender m or f as a vocal preference when applicable. style_weight guides style adherence, weirdness_constraint guides creative deviation and audio_weight sets the documented audio-feature balance; their documented range is 0–1 with up to two decimals. Apply an existing persona_id where the selected workflow supports it. Retain the actual request and selected candidate identifiers when preparing another iteration.
Review the current request rate
The price table reads the current catalog rate for a new processing request in this task. Preparing source music or submitting another music operation uses that operation’s own price. Review the current rate before submitting, retain the returned processing task ID and use the completed result when planning the next step.
API integration and follow-up work
Use the accepted request fields
Submit model: extend-music with input.audio_id, mv and default_param_flag. In custom mode, include prompt, style, title and continue_at. Retain the returned processing task_id and query music details for the completed continuation candidates and their audio IDs.
Track the processing task
Authenticate with your Vidgo API credentials and submit the exact model identifier with the required input fields. Retain the returned processing task_id so your application can track the operation and retrieve its result. Use the task documentation when configuring any completion notification.
Retain the result and source association
Query /api/generate/detail/music?task_id=YOUR_PROCESSING_TASK_ID with the returned processing ID, or handle the configured notification. When the task finishes, inspect the operation-specific result in files and retain its source association. Compare the completed result with the original around continue_at and listen through the new section. Review the phrasing, rhythm, style and the returned duration. Use negative_tags to describe musical elements to reduce and vocal_gender m or f as a vocal preference when applicable. style_weight guides style adherence, weirdness_constraint guides creative deviation and audio_weight sets the documented audio-feature balance; their documented range is 0–1 with up to two decimals. Apply an existing persona_id where the selected workflow supports it. Retain the actual request and selected candidate identifiers when preparing another iteration.
Extend Music API FAQ
Select an existing generated candidate and use its audio_id to create a continuation. Choose mv and a simple or custom workflow: simple mode starts from the source settings, while custom mode supplies the prompt, style, title and continue_at position for the next musical section. Listen to the completed continuation with the original track, review the transition and retain the result you want to develop further.
Explore More Model Families
Recommended Reading
Read music-tool introductions, API guides and platform comparisons to understand required sources, returned results, request costs and follow-up workflows.
