Dramatic orchestral levelup sound both in a world and in the menu
From S. Prokofiev - Montekki and Kapuletti

Testing:
0. Start new game
1. Open console by pressing ~
2. Type "player.advskill onehanded 999999999" and press Enter
3. Close console
Now you must advance some levels and hear new sound. Go to levelup menu to hear more of new stuff