Transform
AI music extender: continue a track from where you choose
The AI Song Generator music extender continues a track from a point you choose, generating new music that follows on from it. Use it on tracks in your library or on audio you upload and own, to add a section, a longer ending or more running time.
Music Extender· preview
Choose a track from your library
Works on songs you generated in the Studio.
You get
- MP3 of each extended version
- WAV export
- Stem MP3s after a split
From 20 credits per run. Sign up to use the Studio.
Open in StudioSteps
How it works
Pick the track
A track from your library, or an upload you own and confirm the rights to.
Set the point
Choose the moment where the new music should begin.
Describe the new part
Add lyrics, keep or change the style, or set it to instrumental.
Listen to the join
Check the transition, then extend again if you need more.
Choosing where to continue
Pick the moment where the new part should begin. A clean starting point makes a clean join: the end of a phrase, the start of a chorus, a stretch where the arrangement is steady. Avoid starting in the middle of a word or a drum fill, where the continuation has to pick up something half-finished.
Telling it what comes next
Reuse the original style line to keep the sound consistent, or change it to steer the new part somewhere else, such as "breakdown, then the full band returns".
- Lyrics for the new part, such as a third verse or a final chorus
- A style line, kept the same or changed on purpose
- Instrumental, to continue without vocals
- A title, if the extended version should be named differently
Building longer tracks step by step
Each extension is saved as a new version, and you can extend that version again. Background music for a long video, an extended mix or a song with an added bridge can all be built one step at a time, listening to each join before adding the next.
Extending audio you made elsewhere
Upload a recording you own (an MP3 or WAV of your song, a beat or a demo) and extend it the same way. You confirm your rights to the audio before it is processed. The continuation follows the uploaded material, so a clean, well-mixed source gives a better result than a noisy phone recording.
Extend, or generate a longer track?
If you know the length you need before you start, set it in Custom mode, up to 6 minutes. Extend when you already have a track you like and need more of it, or when you want control over what happens after one specific moment.
What you get
- MP3 of each extended version
- WAV export
- Stem MP3s after a split
Prompts
Example prompts
Starting points you can paste into Create and adjust. Specific details — tempo, instruments, mood, structure — give the most control.
- Double chorus endingYour lyrics
Add a final double chorus and an outro after the bridge
Stylesame pop style, bigger drums, gang vocals on the last chorus
Use in the Studio - Longer lo-fi bedInstrumental
Continue this lo-fi bed for a few more minutes with steady energy
Stylelo-fi hip-hop, mellow keys, no big changes
Use in the Studio - Outro for mixing outInstrumental
Extend with a long, stripped-down outro a DJ can mix out of
Stylehouse, drums and bass only, gradually filtered
Use in the Studio - Finishing a demoYour lyrics
My uploaded demo stops after the first chorus; continue with a second verse
Styleindie rock, same band sound, male vocal
Upload and extend works on recordings you own.
Use in the Studio - Quiet breakdownYour lyrics
After the second chorus, add a quiet breakdown before the ending
Stylepiano and vocal only, then the full band returns
Use in the Studio
Use cases
Where it fits
- Video creatorsStretch background music to the length of a longer video.
- SongwritersAdd verses, bridges and endings to a short generated song.
- DJsLong outros and breakdowns for mixing.
- Musicians with demosContinue an unfinished recording past the point where it stops.
Keep exploring
Related
- Replace Song SectionSelect a weak verse, chorus or bridge and AI Song Generator regenerates just that part with new lyrics or style. At least 10 seconds, at most half the track.
- AI Remix GeneratorRemix songs you made in AI Song Generator: keep the melody, change the genre, energy and sound. Then extend, replace sections or split stems for a full remix.
- Background Music GeneratorGenerate unobtrusive background music that stays under voices: set exact lengths, keep it instrumental and remove busy parts. Built for video and podcasts.
- Music MakerMake your own music online in one workspace: generate, extend, restyle and split tracks, keep every version, and organize projects, all in the browser.
- Audio to MusicUpload an audio reference and AI Song Generator generates new music that follows its feel, pace and texture. When to use a reference or a cover.
FAQ
Frequently asked questions
Can I extend an MP3 I already have?
How much longer does each extension make a track?
Will the extension sound like the original?
Can I add lyrics to the extension?
Does extending change my original?
Can I continue from the middle of a song?
Hear your idea as a finished track.
Sign up, pick a plan and the Studio opens with this tool ready.