For the month of December my 30 minute erosion of Thomas Tallis’s sublime Spem In Alium is free to download from the Omnempathy Bandcamp:
https://omnempathy.bandcamp.com/album/spem-in-alium
[bandcamp width=350 height=470 album=2502201432 size=large bgcol=ffffff linkcol=0687f5 tracklist=false]