Remove necessity for MusicController to be always visible

osu.Game/OsuGame.cs

@@ -184,6 +184,8 @@ namespace osu.Game
             LocalConfig.BindWith(OsuSetting.VolumeInactive, userInactiveVolume);
 
             IsActive.BindValueChanged(active => updateActiveState(active.NewValue), true);
+
+            Beatmap.BindValueChanged(beatmapChanged, true);
         }
 
         private ExternalLinkOpener externalLinkOpener;
@@ -284,6 +286,23 @@ namespace osu.Game
             }, $"watch {databasedScoreInfo}", bypassScreenAllowChecks: true);
         }
 
+        #region Beatmap jukebox progression
+
+        private void beatmapChanged(ValueChangedEvent<WorkingBeatmap> beatmap)
+        {
+            var nextBeatmap = beatmap.NewValue;
+            if (nextBeatmap?.Track != null)
+                nextBeatmap.Track.Completed += currentTrackCompleted;
+        }
+
+        private void currentTrackCompleted()
+        {
+            if (!Beatmap.Value.Track.Looping && !Beatmap.Disabled)
+                musicController.NextTrack();
+        }
+
+        #endregion
+
         private ScheduledDelegate performFromMainMenuTask;
 
         /// <summary>
@@ -446,7 +465,7 @@ namespace osu.Game
                 Origin = Anchor.TopRight,
             }, rightFloatingOverlayContent.Add, true);
 
-            loadComponentSingleFile(new MusicController
+            loadComponentSingleFile(musicController = new MusicController
             {
                 GetToolbarHeight = () => ToolbarOffset,
                 Anchor = Anchor.TopRight,
@@ -719,8 +738,11 @@ namespace osu.Game
         private Container topMostOverlayContent;
 
         private FrameworkConfigManager frameworkConfig;
+
         private ScalingContainer screenContainer;
 
+        private MusicController musicController;
+
         protected override bool OnExiting()
         {
             if (screenStack.CurrentScreen is Loader)