Important note

esphome/fabula.yaml

@@ -139,6 +139,8 @@ binary_sensor:
       if:
         condition:
           dfplayer.is_playing
+          # Note: this is True only if the dfplayer is playing the track we asked.
+          # If it's looping, the following tracks are player with is_playing=false.
         then:
           dfplayer.play_previous
   - platform: gpio