This game this adventure game was the best game ever. Even I could not finish it :D. I watched the video of this game's longplay. You must watch it to learn the secrets of the Secret Services.
You can find the video of it here:
Although it is 368MB you can use a download accelerator like Flashget. I know you wont regret it.
About the music in the game. There is yes 3 music in the game it can be repetitive but game really covers that. Beatiful atmosphere will make you listen that songs one more time.