Backing up Spotify (1940 points, 3 days ago, 691 comments) https://news.ycombinator.com/item?id=46338339

Spotify reportedly investigating Anna's Archive's scraping of their library (52 points, 2 days ago, 84 comments) https://news.ycombinator.com/item?id=46355793

Next step would be an open Spotify like client to retrieve and cache the torrents of this archive, support searching and cherry picking tracks for playback and download from the torrent swarms, and enable tipping artists directly.

The article says z-library was shut down, however this isn't accurate, it's still around.