Step 1 — Upload or select a song
Upload an MP3 you have permission to process, or choose a playable song from your MusicGPT.cc library.
AI Song Extender
Choose a point in your recording and describe what should follow. Upload an MP3 or use a library song. Extension requires a paid plan.
Choose source audio
Upload an MP3, up to 100 MB, or select a playable track from My Songs.
What does an AI song extender do?
An AI song extender generates audio after a chosen point in a recording. Try a longer instrumental passage or an outro; the result is new audio rather than a repeated loop. Listen across the continuation point. Check whether the rhythm, voice, and tone still fit the song.
Describe the section you want to explore:
- •Intros
- •Bridges
- •Instrumental breaks
- •Outros and endings
- •Extended transitions between sections
Use a continuation to: Lengthen a short track - Try another ending - Leave more room for an instrumental passage - Compare a longer version before editing the arrangement
How It Works
Step 2 — Set the continuation and prompt
Choose where the continuation starts and describe what should follow, such as:
- -Intro
- -Bridge
- -Outro
- -Section extension
- -A longer instrumental passage
Try: “After the chorus, add an instrumental break with the same guitars, then a quieter outro.” The prompt guides generation; it does not set an exact duration.
Step 3 — Generate and review the continuation
Open the result in My Songs and listen around the join. Compare:
- -Tempo
- -Harmony
- -Instrumentation
- -Style
The continuation can change tempo, voice, or instruments. Try another prompt or edit the audio if the join does not fit.
Key Features
Continue existing audio
Use the result to test a longer arrangement, not as a promise of a fixed runtime.
Guide the next section
Describe the instruments and energy that should continue.
Choose a continuation point
Choose a starting point, then listen to how the new section joins.
Review in your song library
Submit a source and prompt in the browser; check the generated audio yourself.
Typical Use Cases
Expand demo tracks into full songs
Hear whether another section adds to the song before committing to a longer arrangement.
Explore a longer arrangement
Explore a longer runtime, then check the finished track and platform requirements.
Add new sections before publishing
Try a quieter outro or an instrumental break after the section you choose.
Improve structure without DAW editing
Compare generated continuations before doing detailed edits in your DAW.
Enhance AI-generated songs
Keep the source as a reference while testing another direction.
Extend Song vs Manual Editing
| Feature | Manual Editing | Extend Song (AI) |
|---|---|---|
| What it produces | Edits to existing audio on a timeline | A generated audio continuation |
| Control | Direct timing and mix edits | Source audio, continuation point, and prompt guidance |
| Best use | Precise arrangement and transitions | Exploring new musical sections |
| Result review | Listen and adjust edits | Listen; regenerate or edit when needed |
AI song extender FAQ
Upload an MP3 or select a library song, choose a continuation point, and describe the next section. Submit the request and review the result in My Songs.
Yes. The current form supports MP3 uploads up to 100 MB as well as library songs. You need permission to process the source audio.
Song extension requires a paid plan on MusicGPT.cc. Check your plan and the form for current credits, limits, and available controls.
Final duration depends on the source, continuation point, model, and current product limits. The page does not guarantee a fixed eight-minute result.
No exact match is guaranteed. The source and prompt guide generation, but tempo, voice, instrumentation, and transitions can change. Listen to the continuation before keeping it.
You can describe an outro, break, or another continuation in the prompt. The result is a generated draft, so you may need to revise the prompt or edit the audio.
No. You remain responsible for rights to the source recording, composition, and lyrics. An AI continuation does not grant permission to reuse another person’s work.
Works with other MusicGPT tools
After choosing a continuation, use two-track or six-stem separation when you want to edit parts in your own software.
Stem Splitter
Extract multi-instrument tracks for deeper remix and production workflows.
Open Stem SplitterAI Music Generator
Generate a new song from text or your own lyrics on the homepage.
Generate source musicExtend your song with AI
Choose the recording above, set a continuation point, and describe the next section.
Extend My Song