Music Sonic Reducers: What Greatest Hits Albums Mean In The Age Of Spotify Nov 11, 2021 Facebook Twitter Pinterest WhatsApp Linkedin ReddIt Email Print Sonic Reducers. 1 topic. 2 music nerds. 5 minutes. Listen in as we debate Greatest Hits albums, delve into the murky waters that separate hits sets from best-ofs, and share some brilliant ideas that the music business should adopt instantly.