diff --git a/music/trans/mt3/colab/music_transcription_with_transformers.ipynb b/music/trans/mt3/colab/music_transcription_with_transformers.ipynb
index 49107163..1d476ba7 100644
--- a/music/trans/mt3/colab/music_transcription_with_transformers.ipynb
+++ b/music/trans/mt3/colab/music_transcription_with_transformers.ipynb
@@ -435,6 +435,8 @@
         "#@markdown This may take a few minutes depending on the length of the audio file\n",
         "#@markdown you uploaded.\n",
         "\n",
+        "import warnings\n",
+        "\n",
         "load_gtag()\n",
         "\n",
         "output_path = os.path.join('FEHRR/trans/mt3/', MODEL)\n",
@@ -442,6 +444,9 @@
         "  os.makedirs(output_path)\n",
         "\n",
         "for filename, audio in audios.items():\n",
+        "  if os.path.exists(os.path.join(output_path, filename[:-4] + '.mid')):\n",
+        "    continue\n",
+        "\n",
         "  log_event('transcribeStart', {\n",
         "      'event_category': MODEL,\n",
         "      'filename': filename,\n",
@@ -463,14 +468,17 @@
         "  # note_seq.play_sequence(est_ns, synth=note_seq.fluidsynth,\n",
         "  #                       sample_rate=SAMPLE_RATE, sf2_path=SF2_PATH)\n",
         "\n",
-        "  fig = note_seq.plot_sequence(est_ns, show_figure=False)\n",
-        "  fig.background_fill_color = None\n",
-        "  fig.border_fill_color = None\n",
-        "  export_png(fig, filename=os.path.join(output_path, filename.replace('.ogg', '.png')), webdriver=webdriver)\n",
-        "  fig.output_backend = \"svg\"\n",
-        "  export_svg(fig, filename=os.path.join(output_path, filename.replace('.ogg', '.svg')), webdriver=webdriver)\n",
-        "\n",
-        "  note_seq.sequence_proto_to_midi_file(est_ns, os.path.join(output_path, filename.replace('.ogg', '.mid')))\n"
+        "  try:\n",
+        "    fig = note_seq.plot_sequence(est_ns, show_figure=False)\n",
+        "    fig.background_fill_color = None\n",
+        "    fig.border_fill_color = None\n",
+        "    export_png(fig, filename=os.path.join(output_path, filename[:-4] + '.png'), webdriver=webdriver)\n",
+        "    fig.output_backend = \"svg\"\n",
+        "    export_svg(fig, filename=os.path.join(output_path, filename[:-4] + '.svg'), webdriver=webdriver)\n",
+        "  except Exception as e:\n",
+        "    warnings.warn('Exception occurred in note sequence figure of ' + filename[:-4] + ': ' + str(e))\n",
+        "\n",
+        "  note_seq.sequence_proto_to_midi_file(est_ns, os.path.join(output_path, filename[:-4] + '.mid'))\n"
       ]
     },
     {