In part one on the first part of chapter seven just before you jump to the balcony below you should see a piano in the room. Press square on it and Max will play on off key version of the theme tune. There are two versions to hear, one fast and one slow.
If you need more help, we've got more Max Payne 2: The Fall of Max Payne cheats and also check out all of the answers for this game
Comments for this hint