Since i’ve been producing music (since about 2003) I feel like 2 major things changed:
-The bar to produce, release and promote music has dropped to the point where basically anybody with a laptop and a €500 budget can release their own, professional sounding music to a potential audience musicians 50 years ago could only dream of. Besides the gear being cheap and the platforms being accesible, it’s not even necessary to really have any musical training or skills: you can just download some loops from splice and autotune your voice.
-because of this, the world has been flooded with music, much of which is of questionable quality. I used to be special because I could record and produce music, so my music was played on radio/tv and posted on certain websites which generated an audience. Right now none of that has any value anymore: people dont rely on radio stations or blogs to promote music, its just an enormous ocean of music online, and the only way to stand out is to make your music visually attractive.
So my guess would be that music evolves in this direction: I think people will be able to easily create and release entire albums using nothing but a mobile phone, and this proces will require hardly any work: apps will automatically provide the right chord progressions and rhytms if you want to, and totally clean up your voice. Most music will sound generic, and I’m thinking there will be short lived trends/genres based on certain apps which allow the user to create a certain kind of song.
To make their ‘music’ stand out people will train themselves to ‘play’ or perform something in a way thats visually attractive, so I expect to see a lot of (finger)drumming controlers and other spectacular looking instruments which rely more on looks than sound. Musicians will be performers/influencers first and the actual music will be an afterthought.
I really hope this prediction is false though…