How To Extend Music

To extend music in Audjust, give it a song and a target length. It detects the beats and section boundaries, then repeats whole sections at points where the repeat lands on a natural boundary. Instead of looping the entire track or pasting an obvious copy, it adds runtime while keeping the rhythm intact, so the longer version sounds like it was always that length.

Here are the steps. Upload an audio file (MP3 or WAV). Audjust analyzes the beats and sections. Enter a duration longer than the original, and it picks repeat points that line up musically. Preview the result, drag where the added section sits if you want, and download it. Everything runs in your browser, with no signup and nothing to install.

A common reason to extend a track is a video or reel that runs longer than the music. If your clip is 90 seconds and the song ends at 70, stretch the song to 90 so it covers the whole video without silence at the end or a hard restart. The same works for padding a walk-on, a dance routine, or a presentation track to the exact time you need on stage.

One thing to know: extending works best when you add full bars or sections rather than a few odd seconds, since that is where a repeat stays invisible. A modest extension at a section boundary usually isn't noticeable. The bigger the stretch, the more a careful listener may catch the repeat, so aim for a target length and let it find clean points rather than forcing an exact number.