try fix key err

app.py

@@ -194,7 +194,9 @@ def infer(p: float, k: int, t: float, region: str):
         args.top_p = p
         args.top_k = k
         args.temperature = t
-        audio, midi, pdf, xml, mxl, tunes, jpg = generate_music(args, TEYVAT[region])
+        audio, midi, pdf, xml, mxl, tunes, jpg = generate_music(
+            args, region if EN_US else TEYVAT[region]
+        )
 
     except Exception as e:
         status = f"{e}"