The official way to use copyrighted music on YouTube is through YouTube Studio > Audio library. The audio library includes free music and sound effects, some of which don't even require attribution.

This article explains how to download audio from YouTube videos and through YouTube Music. It only describes official, YouTube-sanctioned means, as other methods may violate the platform's terms ...

This tutorial will walk you through eight simple ways how to download YouTube audio files to Mac in 8 simple ways.