Music fits a video when its changes land on the cuts and it ends with the last frame. In Vocals, drop the video on Create: it finds every cut on your computer, reads the mood of each scene from one still per scene, picks a tempo that puts the cuts on bar lines and writes a song whose sections follow the scenes. Download it as an MP4, or as a WAV for your editor.
Put a random track under a video and you can feel it: the beat drops in the middle of a shot, the chorus arrives after the best moment, and the song is still going when the screen goes black. Film composers avoid that by writing to picture. The music changes where the image changes.
You don’t need a composer to get that effect. Here is how it works and how to do it in a few minutes.
Why music should change on the cuts
A cut is a promise that something new is happening. When the music agrees, with a new section, a drum fill or a drop exactly there, the edit feels intentional. When it doesn’t, even good footage feels loose. Three things matter most:
- Changes on cuts: sections start where scenes start.
- Energy that follows the story: calm at the start, rising, all in, then letting go.
- An ending on the last frame, not a fade halfway through a phrase.
How Vocals scores a video
| Step | What happens | Where |
|---|---|---|
| 1. Find the cuts | Every scene change, frame by frame | On your computer |
| 2. Read the scenes | One still per scene: its mood, its energy, the story of the whole | The AI sees the stills only |
| 3. Pick the tempo | The BPM that puts every cut on a bar line | On your computer |
| 4. Write the song | Sections laid on the scenes, ending with the video | Vocals’ AI |
Step by step
- Open Create and drop the video on the prompt box. Add a few words if you have a style in mind: “warm indie folk”, “dark synthwave”.
- Wait while Vocals finds the cuts and reads each scene.
- Listen. The song plays under the video, changing on the cuts.
- Change anything in the studio: the video plays in sync while you edit the parts, the sounds or the mix.
- Download an MP4 (your video with the song as its sound, the picture copied as it is) or export the song as a WAV or MP3.
Shorter clips score best. For a long edit, score it scene group by scene group, or ask for a steady style (“ambient, no big changes”) that sits under a voice-over.
Finish it in your editor
If you edit in CapCut, Premiere Pro, Final Cut Pro or DaVinci Resolve, export the song as a WAV and drop it on the timeline under your video. Because the tempo was chosen from your cuts, the song lines up from frame one. If you re-cut later, drop the new version into Vocals again.
Reels, TikTok and Shorts
Short vertical videos have fast cuts, which makes music that follows them even more noticeable. In Vocals you can also go the other way: start from a song and make a 9:16 clip with its lyrics and an AI-made mood video, or post a hook from your song as a short video in the Community.
Choosing a style for your video
The scenes set the energy; your words set the style. A travel video suits warm acoustic or upbeat indie; a product demo, clean electronic with a steady pulse; a wedding film, soft piano and strings; a sports edit, big drums and a drop. Say whether you want vocals: under a voice-over, ask for an instrumental so the music never competes with the words.
Other ways to get music for a video
When you don’t need the music to follow the cuts, a royalty-free library is quicker: pick a track by mood and length. When you want a specific sound, describe it precisely and make a song from a prompt. More on the Score a video page and in the Academy lesson on songs from a photo or a video.
