If you can refer me to some valuable readings on the Internet, I will gladly explore them
I myself over the last 5 years have dismissed a whole lot of music on two separate accounts:
A] some sounds / instruments for me now are now simply unpleasant, irritating even [but the compositions themselves on a stand alone basis I still liked and like]
B] some compositions themselves are now like boring, instruments sound too weak to what they can sound like, special effects used are too primitive to me [albeit being free of just unpleasant sounds]
But I still have songs and instrumental music from when I was a teenager. And that music I value the most, because it shows to me that I got rid of the weak ones [B]. But the other removals from my collection [A] are sometimes done with a thought in mind like "it is a pity that I am not able to enjoy this anymore"
So
and 2 years later it still holds up [to be precise, way more than 2 years, because at the time of posting that I was referring to a conversation with a friend from a past]
But it is not like "I will not listen to Frank Valdor just because I think my taste is set up for life". It is more like "I do not know Frank Valdor but I also do not want to know him because I simply already have too much music for my one life that I have to spent" [How much music do you have?]. But I do think that in overall my taste was closed a long time ago, polished for the last 5 years and now I am just removing that which does not fit into it and that what still fits but is just too weak. And that last one is because: if some pieces of instrumental music gives me ASMR and some song make we want to drop down and as many pushups as I can, then why not listen only to such music, getting rid of all the mediocrity? Some pieces of music get to the inside of with 2-3 second and I can repeat them 5 times in a row - while others will not get any other response from me other than "that is boring" or "how weak that is"
Because it also like this: I used to think that Mark Snow was the s**t. That was when "The X-Files" were the TV series that ruled the world of entertainment around the globe [1990s]. But then I listened to so many other film scores and in few years saw what Mark Snow really was about- just one of many mediocre composers, who accidentally made a great theme [that is a true story: he came up with the characteristic sound of is signature theme by accident when playing with his keyboard]. Do not get me wrong: I still listen to some of his tracks, but so much more got demised without a second thought - and there is now way I will be getting back to them
Although I noticed a slight change in my approach to what I do not like. After something like watching a new popular music video on YouTube I am able to say "I do not like it but I can see why someone would enjoy this, because it objectively has good elements A, B, C and D". But at the same time, after watching something else, I can also think "this is plain awful on the account C, D and E"
I still would like to hear insights and recollections from other users of this forum