Alter an artist tag to tell that there is nothing left to play, so a fallback song is used to fill a silence.

internal/http/dj_handlers.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"strings"
 	"time"
 )
 
@@ -76,6 +77,10 @@ func (dj *DJHandlers) PlaylistNext(w http.ResponseWriter, _ *http.Request) {
 			MaxListeners: dj.listeners.Current(),
 			StartAt:      time.Now()}
 
+		if strings.HasSuffix(nxt, "/fallback.ogg") {
+			song.Artist = "Nothing to play. Playing a fallback: " + song.Artist
+		}
+
 		if dj.songList.Current() != nil {
 			dj.mostLSong.Update(*dj.songList.Current())
 		}