How to Generate Royalty-Free Background Music with AI

Create a custom backing track with an AI music tool, trim it to your video length, and keep it clear for use.

8 minBeginner

Finding background music that fits a video and is genuinely cleared for use is a chore. AI music tools generate a custom track from a text description, sidestepping the licensing maze. This guide makes a track, fits it to your clip, and confirms the usage terms.

What you need

An AI music generator
The length and mood of the video you are scoring
About 8 minutes

Step 1: Describe the mood, not the notes

Prompt with feel, tempo, and instruments rather than musical theory. Concrete adjectives steer the result better than technical terms.

Music tool - prompt

You

Calm, hopeful background track, slow tempo, soft piano and warm pads, no drums, loopable.

Agent

Generated 3 variations at 75 BPM, each 90 seconds and loop-friendly. Preview below.

Describe mood, tempo, and instruments.

Step 2: Generate variations and pick one

Most tools produce several takes. Listen on the device your audience will use, since something that sounds rich on headphones can disappear on a phone speaker.

Step 3: Trim and loop to length

Cut the track to match your video and add a short fade at the end. If the clip is longer than the track, use a loop point so the seam is not obvious.

terminal

# trim to 30s with a 1s fade-out
ffmpeg -i track.wav -t 30 -af 'afade=t=out:st=29:d=1' bg-music.wav

Step 4: Confirm the usage terms

Read the license for your plan

Some AI music tools grant full commercial use only on paid tiers, and a few claim ownership of free-tier output. Check what your plan allows before you publish, especially for monetized video.

Result: a custom backing track that fits your video, is trimmed and looped cleanly, and is cleared for the way you intend to use it.