Every run starts at a second you choose. The AI music extender reads the audio ahead of that point — key, tempo, chord movement, which instruments carry the part — and writes new bars forward from there. Nothing is copied back from earlier in the song, so a chorus does not simply return. The rest you steer in words: a style line holds the direction or asks for a change, an exclude list keeps unwanted genres out, and three sliders decide how literally the model takes you. Vocals carry on with lyrics you write, or drop out entirely when the section has to sit under a voice-over. Source audio comes from your library or from a file you upload as MP3, WAV, M4A or OGG, under eight minutes and 50MB. A run lands in about one to two minutes with the credit cost on screen first, so a second attempt stays a small decision.
Where the AI music extender starts, what the new part sounds like, and who sings on it.
Continue From takes a timestamp in seconds, from one second in to just short of the end. That number decides what the AI music extender listens to: everything before it becomes the lead-in, and the new bars follow that lead-in instead of a template. Set it on a downbeat and the extension arrives on the next bar.
Second-Level Timestamp
You name the continue point instead of letting a tool guess
Reads the Lead-In
Key, tempo and instrumentation come from the audio before that point
Written, Not Repeated
New bars are composed forward, never pasted back from an earlier section
Six things worth knowing about the AI music extender before you spend a credit.
Extensions begin at the second you type, not at a fade-out some tool picked for you.
The AI music extender takes a track you generated here, or your own MP3, WAV, M4A or OGG.
A style line and a prompt beat a wall of presets when you know how the section should feel.
Style Adherence, Creative Freedom and Audio Balance move the result between safe and risky.
Under eight minutes, under 50MB, one to two minutes a run — the AI music extender says so before you start.
The cost sits next to the button before you commit. The extender itself ships with the Pro plan.
Six jobs where an AI music extender solves the whole problem: a track that stops too early.
A 90-second bed under a nine-minute edit comes around six times and everyone hears it. Let the AI music extender stretch the bed to the runtime instead.
The hook landed and nothing else did. Point the AI music extender at the bar where you ran out and let it draft the verse or the outro.
Club edits live and die on their intros and tails. Build the long mix-in you need, or stretch a breakdown until the blend has room.
Players stand in one room far longer than the composer planned. An AI music extender turns a short cue into minutes of the same material, with no loop point to hear.
Theme music that runs eight seconds short of the cold open is a weekly annoyance. Run it through the AI music extender once and stop trimming it by hand.
The scene runs 2:40 and the cue runs 2:05. Run the piece through the AI music extender until it covers the scene and keeps the shape it was written with.
From a track that stops too soon to one that runs as long as you need.
Pick one from your library, or upload MP3, WAV, M4A or OGG under eight minutes.
Type the continue point — anything from one second in to just before the end.
Add a title, a style line and a prompt. Switch on Custom Mode to write the lyrics yourself.
Give the AI music extender a minute or two, play it back, and save the file.
Answers on timing, uploads, controls, cost and rights.
At the second you type into Continue From. Everything ahead of that timestamp is the lead-in, and the AI music extender writes forward from it, so the join lands where you put it.
Yes. Upload it as MP3, WAV, M4A or OGG, under eight minutes and no larger than 50MB. Only upload audio you hold the rights to.
Three sliders between 0 and 1. The first sets how literally the AI music extender follows your style line, the second how far it may wander, the third how much weight the source track carries.
The AI music extender usually needs one to two minutes. Progress updates while it works, and the finished track lands in the result panel ready to play.
Descriptions naming a real artist or singer are blocked before the request goes out. Describe the sound instead — tempo, instruments, era — and it goes through.
The AI Music Extender is part of the Pro plan, and each run's credit cost shows beside the extend button before you spend. New accounts get 10 welcome credits, no card — spend them in the AI Music Generator, which is free to use, to hear the engine first.
Commercial use comes with the Business plan, and credit packs unlock the same access. Free, Basic and Pro are licensed for personal projects, so check pricing before you publish.
Other tools for a track once it runs the right length
