• Yes, emacs has a music player
• It’s not a player, but rather a player controller and media library manager
• It has plugin architecture and delegates actual playing to various modules
• Default one - emms-player-mpv is quite good
• It can play almost everything, right? Including streams
• You can use the excellent Radio Browser to find online radio stations
  • download as PLS
  • emms-playlist-new
  • emms-playlist-insert-playlist
• I’ve made emms-player-spotify which controls spotify desktop app via MPRIS interface.
  • it supports internal spotify:type:id links and also the usual https://open.spotify.com/type/id as well
  • it syncs controls with the desktop app (play/pause, track switch works both in spotify and in EMMS)
  • it syncs track metadata, i.e. title, name, length etc
  • it also can play dynamic playlists, i.e. radios
  • it mutes ads automatically