Choose the join point
The continue-from field is in seconds. When you upload a file, it defaults to the end of the track, but you can set any earlier point.
AI music extender
An AI music extender that continues your track.
Upload a track or pick one of your songs, choose the second where the AI should pick up, and optionally steer the style. The music extender AI writes a continuation that follows on from your audio. Available on Pro and Studio, 2 credits per extension.
- Pick the exact second to continue from
- Optional style and genre guidance
- 2 credits per extension
How to extend a song with AI
Extend Audio is inside the app for Pro and Studio subscribers. The result usually arrives in a minute or two.
Add your track
Upload an audio file up to 50 MB, or open one of your songs in the Library and choose to extend it.
Set the continue-from second
Keep the default, which is the end of the track, or type the second where the new section should begin.
Guide the style (optional)
Choose a genre and mood, a vocal preference, or instrumental only. Advanced settings include the model, style weight and negative tags.
Extend and review
Start the extension for 2 credits and listen to the result in your Library. Try another point or setting if the join is not right.
How it works
What the AI music extender does with your audio
The extender listens to your track up to the point you choose and generates new music that follows on from there, aiming to keep the same feel. It is useful when a track ends too soon, when you have a strong intro but no second half, or when you want to try a different direction from a certain moment.
Keep or change the style
Leave the style settings alone to stay close to the original, or choose a genre and mood to push the continuation somewhere new.
Vocals or not
Set a vocal preference, or switch on instrumental only if the continuation should have no singing.
Smooth joins
Tips for a seamless continuation
Where you cut matters as much as what you ask for. These habits give the AI a cleaner starting point.
- Continue from the end of a musical phrase, such as the last beat of a bar or the end of a chorus, rather than mid-word.
- Avoid starting from a fade-out or silence. The AI has less to follow when the music is already disappearing.
- Keep the style close to the original for a natural join. Save big genre changes for creative experiments.
- Use negative tags to rule out sounds you do not want, for example "distortion" for a clean acoustic track.
- Clean, well-balanced audio gives better results than a noisy phone recording.
Limits
What to expect from music extender AI
The continuation is newly generated audio, so it will not be a perfect copy of your arrangement. Instruments, vocal tone or tempo can drift slightly, and the length of what is generated varies. It works on finished mixed audio: there are no stems, MIDI or multitrack controls. Only upload audio you own or have permission to use.
Not a free tool
Searching for an AI music extender online free? Extension is a Pro-plan tool on the Pro and Studio plans and costs 2 credits each time.
Rights still apply
Extending someone else's song does not give you rights to it. The Content Usage License never covers third-party material you upload.
When extending a track makes sense
A few common situations where continuing a track is quicker than starting from scratch:
A generated track that ends too early
You love a track from your Library but it stops before your video does. Extend it from the final bar and keep the same genre and mood.
- Library song
- Same style
- Longer track
An intro with nowhere to go
Upload a short piano or guitar idea you recorded and let the AI suggest where it could go next.
- Own recording
- Piano
- Idea starter
A different ending
Continue from the middle of a track instead of the end and try a new mood, for example turning a calm song more energetic.
- Mid-song start
- Mood change
- Experiment
Frequently asked questions
What is a music extender AI?
It is a tool that listens to an existing track and generates new music that carries on from a chosen point. Here it is called Extend Audio, and it is available on the Pro and Studio plans.
Is there an AI music extender online free?
Not on this site. Extend Audio is a Pro-plan tool and costs 2 credits per extension. Free starter credits cover standard song creation, not the Pro tools.
Can I choose where the extension starts?
Yes. Enter the second you want to continue from. When you upload a file, the field defaults to the end of the track.
How long will the extended part be?
The length of generated audio varies and cannot be set exactly. If you need more, you can extend the result again, which costs another 2 credits.
Can I extend a song I did not make?
Only if you own it or have permission. Uploading a track does not give you rights to it, and our Content Usage License does not cover third-party audio.
What file types can I upload?
MP3, WAV, FLAC, M4A, OGG and AAC files up to 50 MB. You can also start from a song already in your Library.
Music AI Generator
Give your track the ending it needs
Sign up, choose a Pro or Studio plan, and continue any track you have the rights to from the exact second you choose.
Extend a Track