• add 'Genres' view to the web UI
• integrate the web UI with the (Chrome) media control API (provides e.g. support for HW keys play/pause/etc and integration to the OS lock screen)
• improvements for Subsonic API:
  • support genres: add methods getGenres and getSongsByGenre, and add parameter genre to methods getRandomSongs and getAlbumList(2)
  • support defining year ranges on methods getAlbumList(2) and getRandomSongs
  • add year and genre properties to all album responses, add genre property to all song responses
  • support starring tracks, albums, and artists (#750) (stars are visible only via Subsonic)
  • proper paging when fetching random album list (one album returned only once)
  • optimize getting large folder contents
  • fix/tweak the logic used in the method getLyrics
  • API version set to 1.10.1
• improvements for Ampache API:
  • support limit and offset parameters on more actions; this fixes the "Random Artists/Albums/Playlists" feature on the Ampache plugin in the Kodi media player
  • support genres using the tags feature of the API: added actions tags, tag_artists, tag_albums, and tag_songs and include tag properties on song/album/artist responses
• drop the SoundManager2 library in favor of using HTML5 API directly
• update getID3 to development version 1.9.19-202004201144 (should help on #123)
• allow rescanning previously scanned tracks with occ music:scan by using the option --rescan
• fix unable to open details pane if getID3 can't extract any metadata tags
• fix several small bugs causing logged error notes (but no undesired behavior) at least on Nextcloud 18 + PHP 7.4
• fix a typo in the 'Settings' view (#751 by @amalvarenga)