What is an AI music extender?
RaoMusic's AI music extender continues an existing track from a point you choose. Upload a file or pick a library song, mark KEEP / RECREATE on the waveform, and generate the next section — typically two MP3 versions, not a new song from a blank prompt.
No subscription required
Sign in to extend a song. Extending is available on the free plan — you do not need a paid subscription.
Commercial use included
Download the MP3 and use it commercially on the free plan. You don't own the copyright.

Extend the song you already have
Extend vs repeating a clip vs a new prompt
Extend writes new audio after a keep point. Repeating a clip cycles the same bars. Generating from a prompt starts a different track.
| Feature | AI music extender | Repeating a clip | Generate from a prompt |
|---|---|---|---|
| Starting point | An uploaded file or a library song | The same clip, reused | A text prompt, not the original audio |
| What you get | New audio after the keep region | Existing bars repeated | A new song, not a continuation |
| Where it continues | KEEP / RECREATE on the waveform | No split — it repeats | No original to keep |
| Commercial use on the free plan | Yes, on the free plan | Depends on the source file | Yes, on the free plan |
Starting point
- AI music extender:An uploaded file or a library song
- Repeating a clip:The same clip, reused
- Generate from a prompt:A text prompt, not the original audio
What you get
- AI music extender:New audio after the keep region
- Repeating a clip:Existing bars repeated
- Generate from a prompt:A new song, not a continuation
Where it continues
- AI music extender:KEEP / RECREATE on the waveform
- Repeating a clip:No split — it repeats
- Generate from a prompt:No original to keep
Commercial use on the free plan
- AI music extender:Yes, on the free plan
- Repeating a clip:Depends on the source file
- Generate from a prompt:Yes, on the free plan
How to extend a song with AI
Three steps from a short track to a longer one — no DAW required.
- 1
Upload or choose a song
Sign in, then upload an audio file or pick a completed song from your library. Common formats up to 50MB work.
- 2
Set the extend point
Drag KEEP / RECREATE on the waveform so the original stays up to your split and the model continues after it.
- 3
Generate, preview, download
Generate the continuation, preview the versions in your library, then download the MP3. You can extend again from the new track.
When to use an AI song extender
Use it to continue a track you already like. Skip it when you need a short social clip or a DAW-level mix.
Best for
- ✓A demo that ends before the chorus
- ✓A verse that still needs another section
- ✓An uploaded MP3 that should continue past its current ending
Not for
- !Repeating the same bars unchanged
- !Trimming a song to a short social-clip length
- !Replacing a DAW for mixing, mastering, or sample-accurate edits
How an AI song extender continues your track
People reach for a music extender when a demo is too short, a verse still needs another chorus, or an uploaded MP3 should keep going. Because you can upload an existing file, the starting point does not have to be a song originally created on RaoMusic — a way to extend music without rebuilding the track from a blank prompt.
Extending writes new audio after the region you keep, so the song moves forward. It is not a trimmer for short social clips: each run produces a normal generation-length continuation you can take further.
The extend-a-song guide is a written walkthrough of the same waveform control inside the main create workspace. This page is the dedicated entry — same extend engine as /create, with an upload-or-library start so you do not begin from a blank generate form.
AI music extender FAQ
Extending spends the same credits as generating a new song with the model you selected. New accounts start with 50 free credits. Failed generations are refunded.
Yes. Sign in to upload audio or pick a song from your library. You can extend without a paid subscription.
Both. Upload MP3, WAV, OGG, M4A, FLAC, or AAC up to 50MB, or choose a completed song from your RaoMusic library. Uploads are saved as library tracks you can extend again later.
No. The model writes new audio after the region you keep. It does not cycle the same bars.
The guide explains the waveform control inside the main create workspace. This page is a dedicated entry for the same extend engine, with an upload-or-library start so you do not begin from a blank generate form.
Yes. You can use extended tracks commercially on the free plan. You do not own the copyright. Check the commercial license page for the full terms.
MP3, WAV, OGG, M4A, FLAC, and AAC, up to 50MB. The file must have a readable duration — a damaged or empty file is rejected before upload.
Each run continues from the point you mark on the waveform and generates a new section in the same session as a normal generation. If you need it longer, extend again from the new track.
Yes. Extending is available on the free plan with no subscription required. New accounts start with 50 free credits, and an extension spends the same credits as a normal generation with the model you selected. Failed generations are refunded.
Suno's extend feature continues songs inside the Suno workspace. RaoMusic's AI music extender also accepts any uploaded file — MP3, WAV, or another supported format — so you can continue a track made elsewhere, and commercial use is included on the free plan. You do not own the copyright of the generated audio.
Related tools
Extend a song with AI
Upload a track or pick one from your library, drag the waveform, and continue it. Sign in to get started.
