I'm not so sure. An audience feels the music much more intensely if the artist is feeling it. If the artist merely performs it, the audience doesn't feel it nearly as much.

Great radio lab episode!

re: hearing something awful becomes pleasant with repetition The first time I heard this (composed using non-chromatic scale with 16 pitches to the octave) was somewhat uncomfortable, but after hearing it a few times, it became quite pleasant.

https://kylegann.com/FracturedParadise.mp3

The explanation: https://kylegann.com/Fractured.html