YouTube has partnered up with music licensing startup Rumblefish to enable users to add fully licensed songs from its 25,000 tracks strong catalog of independent artists to videos. Users can add the songs through the AudioSwap feature, giving them a much broader choice than was the case until now.

To use the feature, just pick any uploaded video and browse the provided audio library. You’ll get a preview, and with the click of a button YouTube will start processing the request. Note that adding a song will completely replace the current audio from the video.

Rumblefish’s catalog includes everything from ambient, metal, experimental and electronica to the classics and full orchestral scores. Just don’t use it to cheat on the YouTube Symphony Orchestra competition.