Update nsynth-script.py

nsynth-script.py

@@ -93,6 +93,6 @@ class Nsynth(datasets.GeneratorBasedBuilder):
                 "id": str(guid),
                 # "file": audio_path, 
                 "audio": audio_filename, 
-                "instrument": examples[key]["instrument_family_str"], 
-                "label": examples[key]["instrument_family_str"], 
+                "instrument": examples[guid]["instrument_family_str"], 
+                "label": examples[guid]["instrument_family_str"], 
             }