For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some ‘organic element’ since I couldn’t accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.
For me it’s not like I don’t like music, but there are large stretches of time, where I do not care so much for it. I would guess that I haven’t actively choosen to hear music for weaks, possibly months, now. Obviously excluding the music you can’t avoid, like background music in movies and video games etc.