Authorized source

AI SONG EXTENDER · TWO COMPLETE VERSIONS
AI Song Extender: Continue from the Exact Moment You Choose
Upload music you own, mark the handoff point, and get two full-track continuations to preview before you download. The AI Song Extender keeps the source, continuation point, direction, results, and download path together in one focused workflow.
Choose where the new music begins.
Verified AI before and after
Hear one authorized track before and after a real extension.
This AI song extender generated the second player from the authorized source. Compare the transition, arrangement, and new ending for yourself.
Generated continuation
SongExtender continuation sample
Listen at the transition to hear how the original track moves into newly generated music.
Three simple steps
How to use the AI Song Extender in three steps
- 01
Upload with rights
Start with music you own or are authorized to use. Your file uploads privately only when you generate. The AI Song Extender checks the submitted source again before it creates a private task or reserves credits.
- 02
Place the tape head
Preview the source and drag the marker to the exact moment where the new composition should begin.
- 03
Direct and review
Guide style or lyrics, then play and download either complete variation independently.
Practical AI extension guide
How the AI Song Extender works with real music
Use the source as the musical reference, choose the exact handoff, and describe what should happen next. The continuation should develop new material rather than repeat a loop, and both complete versions should be judged at the same transition points.
01Choose a musical handoff point
Do not automatically place the marker on the final silent frame. A small amount of active musical context before the handoff helps the continuation follow the rhythm and direction. A point inside the last phrase, groove, or sustained chord usually works better. For a verse-to-chorus transition, place the marker where the arrangement is already preparing to lift. For an outro, keep enough music before the marker to preserve the groove, then describe how the energy should resolve.
02Write a direction that complements the source
A style direction is most useful when it describes the next section rather than rewriting the whole song. Mention the intended section, energy curve, key instruments, vocal presence, and transition. For example, ask for a restrained bridge that keeps the same drums and bass before opening into a wider final chorus. Avoid stacking unrelated genres or contradictory tempo instructions. The AI song extender already receives the source audio as its main reference, so the text should clarify what changes next and what must remain stable. Short, concrete production language is easier to evaluate than vague praise words. This keeps the AI song extender focused on one audible change.
03Compare candidates at the transition
The first seconds after the continuation point matter more than an impressive ending. Listen for timing drift, a sudden key change, altered vocal identity, a mismatched room sound, or a hard edit at the handoff. Then review whether the new section develops the intended musical idea. The AI song extender keeps candidates separate so you can audition each result without overwriting the upload. A practical extender should make those comparisons easy. If neither candidate is usable, adjust one variable at a time: move the marker slightly earlier, simplify the direction, or change the lyric density. This makes the next generation a controlled iteration instead of a random restart.
Made for a real handoff
What this AI song extender keeps under your control.
Continue from the exact musical moment
Click the waveform to move playback, then set the independent handoff marker by dragging it, entering seconds, moving ±5 seconds, or using the current playback position. The AI Song Extender uses that saved point as the requested boundary between the owned source and the new section.

Start simple, open deeper controls when needed
Simple keeps the essential controls. Custom adds a song title, vocal choice and more production detail without clearing the draft.

Compare, save, and download both complete results
One successful generation returns independent A and B versions. Preview both at the same musical moments, then save or download the stronger result when your account has access.

Built around the moment music ends too soon
Where an AI song extender fits real creative work.

Songwriters & independent artists
Develop a demo into a bridge, final chorus, instrumental passage, or more deliberate ending.

Video & film editors
Create a musically developed cue that can better fit a longer scene or edit. The AI Song Extender can carry an owned cue beyond its original ending while keeping the editor in control of the handoff point and final choice.

Podcast producers
Give an owned intro, outro, or music bed enough room for the episode without an obvious repeat.

Game & interactive audio teams
Use the manual instrumental path to explore longer musical development for menus, scenes, and transitions.
Rights & privacy
Your permission is part of the product, not fine print.
Source privacy and result visibility
Your source stays private. Result visibility is shown before generation. Local preview does not upload the file before you generate.
Source rights remain yours
A commercial AI song extender plan cannot grant rights to third-party material inside an upload. Only use audio you can legally extend.
Charge on success
The current song workflow reserves credits and releases them when generation fails.
Launch offer
Get 2 complete versions per generation. Pay once or subscribe.
Pay-once packs start at US$9.90, with US$19.90/month and US$96/year plans. Credits never expire.
Pay once
From US$9.90 · no renewal
Pro monthly
US$19.90/month · renews monthly
Starter yearly
US$96/year · renews yearly
Before you upload
Questions before you upload
What audio can I choose?
Choose MP3 audio you own or are authorized to use. SongExtender V3.5 and V4 accept sources up to four minutes; V4.5, V4.5+, V5, and V5.5 accept sources up to eight minutes. The exact limit updates when you choose a version.
Does this page send my audio anywhere?
No. File selection and playback stay in your browser while generation is unavailable.
Will the result be a repeated loop?
No structural looping is used. The service follows the source and exact continuation point, then returns newly generated extended tracks. Musical quality still varies by source.
Can I use a future result commercially?
Only if you have the required source rights and the applicable output terms allow your intended use. Review the Terms before publishing.
Can I extend instrumental music?
Yes. Every SongExtender version offers a manually selected Instrumental mode, with a four- or eight-minute source limit depending on the version. It is never used as an automatic paid retry.
Which output formats are available?
Both lyrics-guided and instrumental results download as MP3 files. When conversion is needed, the browser prepares the MP3 before saving.
AI Song Extender
Start with a track you are allowed to extend.
Upload your song, choose the exact handoff point, and generate two complete versions.
