This doesn’t make a lot of sense. Songs are copyrighted two ways, performance - the arrangement, composition and lyrical content of the song, and the master - t

This doesn’t make a lot of sense. Songs are copyrighted two ways, performance - the arrangement, composition and lyrical content of the song, and the master - the actual mastered resulting waveform. Samples are copyright infringement on the master and using for instance the same chorus as someone else in your song falls under performance. I don’t get how this helps either.