extend_music continues a previously Suno-generated track from (or near) a chosen point, rather than generating a whole new song. It's the fix for a track that faded out too soon or needs a longer instrumental section to cover a video's runtime.
It requires the source track's audioId — pull that from get_generation_history or fetch_user_generations for the prior generate_music result you want to extend.
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Extend an existing Suno-generated track with more music, continuing from (or near) a point in the source track. Use when the user wants a previously generated track made longer. Requires the source track's audioId (get it from get_generation_history / fetch_user_generations for a prior generate_music result).
What to tell the agent
Versely's agent maps this plain-English request directly onto extend_music. You don't need to know the parameter names — just describe what you want.
“Extend my last generated track by another 30 seconds, continuing the same style.”
How it works
1. Find your source track's audioId
Pull it from get_generation_history or fetch_user_generations for the original generate_music result.
2. Pick a continue point
continueAt lets you specify where in the track the extension should pick up from.
3. Guide the new section
prompt and style steer what the extended portion sounds like — keep them consistent with the original for a seamless continuation.
4. Generate
Versely returns the extended track, ready to attach to your video with attach_audio_to_video.
What it costs
Billed per extension generated, separate from the original track's generation cost. Ask the agent for estimate_cost before extending.
The formula behind that number: What does a finished 30-second AI ad cost end to end? — sums four unrelated meters, so no single rate predicts the total.
Limits & things to know
- Requires an existing Suno-generated track's audioId — you can't extend an arbitrary uploaded MP3 with this tool.
- Style consistency with the original section depends on how closely your prompt/style match what was originally generated.
Who uses this
- Covering a longer video runtime with the same track
- Fixing a song that fades out before the video ends
- Adding an outro section to an existing generation
Frequently asked questions
Can I extend any music file?+
No — extend_music works on a previously generate_music-created Suno track, referenced by its audioId. Uploaded or third-party tracks aren't supported as a source.
Where do I find the audioId?+
Use get_generation_history or fetch_user_generations to look up the prior generate_music result you want to extend.
Will the extended section match the original sound?+
It's guided by the prompt and style you provide — keeping those close to the original generation's settings gives the most seamless continuation.
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Extend a Music Track inside Versely
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