For easily digestible ideas about the future of popular/electronic music, I can recommend Adam Harper's book[0], blog[1] and his recently started podcast/show[2].

[0] https://www.amazon.com/Infinite-Music-Imagining-Millennium-M...

[1] https://rougesfoam.blogspot.com

[2] https://www.rbmaradio.com/shows/adam-harpers-bubblebath (might need non-US proxy)