I was interested to find that your thread on music.
I make art, not music but the reason I am replying is that I search for new music constantly. Going out looking for new music is as central to life for me as philosophers and somehow the two are linked. It is my own way of finding meaning, in coping with truth or the lack of it.
I began going to record shops as a child and listened to Bowie, Bryan Ferry, Status Quo and many other rock stars as a child. During adolescence I found U2, The Alarm, The Cure, Soft Cell and they became as real a part of my philosophical quest as the books I was reading.
But the point you are really making is about new music and I think that many people have stopped searching for it. I am sure that this affects musicians as much as people like me who inhabit record shops. Most people I know, even those in their early twenties do tend to listen to music of present eras rather than looking for the new. Those who do look tend to look on the web. This has led to most of the record shops shutting down. But I prefer physical music and travel into Central London to go to the shops that remain.
I have endless CDs, the piles are taller than me. I do think that the CD is the most durable form of music even though a lot of people have gone back to records. Albums became an hour rather about 30 minutes. This gave more opportunity for creation, but many people, even my mother, seem to be more interested in tracks which misses the whole point of an album as a piece of art. I do believe that certain albums are almost like a philosophy book and to just listen to tracks misses the whole point. Life would not be the same for me without Bowie's Alladin Sane album or U2's Achtung Baby.
Anyway, I think that there must be a need for new music. I listen to all genres from pop, rock, goth, and dance, but have to confess that I can't relate to classical which might even offend you as you are a musician. But I have found new albums this year, because I am a seeker, including new music by Bob Dylan, Bruce Springsteen, The Psychedelic Furs, Sam Smith and up and coming bands.
Perhaps the present time of sadness and chaos of Covid_19 will bring forth greater music and creativity in general. To quote a band called The House of Love (late 80s)' The Beatles and the Stones put the V in Vietnam....'
Who knows, a whole new genre of music may emerge because as one friend, who plays guitar in a post punk band, has grumbled, there has been a lack of innovation since 2000. Of course as a musician yourself, you might disagree with this.