BG2 Music

I just did a search on Napster for Baldurs Gate music and I found a lot of great mp3's, the trouble is I'm not hearing any of these in the game! I get some music, like when one of my NPC's start talking or in a battle, or sometimes just randomly. While the music is beautiful it is also very short (perhaps 15 seconds) and plays quite seldom. Now these MP3's I have not heard them in the game! They have names like Romance II and Lair of the Dragon and Taverns, and I can clearly recognize that they are the same style as the little music I do hear in the game (Romance II is basically a remixed version of the main theme, much slower pace though). Am I missing something in the game? Are these MP3's from some collectors edition CD or something? The music is GREAT and I would like to hear it in the game too! Are these MP3's maybe fanwork? The titles clairly state BG2 so I'm not listening BG1 music by mistake.

[MidNightForce]

Unfortunately the music in bg is really quiet, so you have to make some sound option fixes and then is the problem, that music will not be played continuous... I suppose you all, to download these wonderfull music pieces with napster, because you hear the music more clear than in the game, and some songs you only sometimes hear in the game are really nice done.