How many people are actually going to download a torrent client, navigate through some massive torrent file collection to check the files of the artists they want to download so they can upload mp3s to their phone over a USB cable like it's 2004 again, just so they can avoid paying Spotify?
You just need a client that can make use of it.
I'm not sure if anyone will be interested in making one however, you can already get a patched Spotify APK from the usual mobile piracy spaces that's good enough.
The metadata is 200 GB which can be easily indexed and could be made searchable, then you download only what you need
I do that not because I don't want to pay Spotify, but because it is more convenient. I want all of my music in one place (VLC), and Spotify doesn't let me export my library as OPUS or Flac. Some stuff in my library is only posted on SoundCloud, some are old mp3 recordings by friends, and another 30% are only on YouTube (small cover artists)
The more interesting part is how this is your mental model of actually "physically" owning music.
The amount of messaging that will be needed to explain how home servers are convenient is pretty crazy.
As mentioned in other stories, this is really welcomed by other big corps or LLM related companies