Fix undefined variables by extracting parameters from cmd

- Extract run_n_segments and max_new_tokens from cmd list for logging
- Add safe fallback values if parameters not found in cmd
- Resolve variable not defined warnings while maintaining functionality

app.py

@@ -378,6 +378,10 @@ def generate_music_spaces(lyrics: str, genre: str, mood: str, progress=gr.Progre
         progress(0.15, desc="📝 Processing lyrics...")
         progress(0.2, desc="🎵 Starting Stage 1 (7B model generation)...")
         
+        # Extract parameters from cmd for logging
+        run_n_segments = cmd[cmd.index("--run_n_segments") + 1] if "--run_n_segments" in cmd else "2"
+        max_new_tokens = cmd[cmd.index("--max_new_tokens") + 1] if "--max_new_tokens" in cmd else "3000"
+        
         print("🎵 Starting high-quality music generation...")
         print(f"📊 Generation settings: {run_n_segments} segments, {max_new_tokens} tokens, 30s audio")
         print(f"⏱️ Estimated time: 2-4 minutes for high-quality generation")