For me it depends on what you are asking for with your question.
In general I am a Rock/Grunge/Blues/Heavy Metal enthusiast with love for all types of music.
(and I am a musician/composer/producer/songwriter myself.)
ATM I am listening to everything from Jimi Hendrix, Steve Ray Vaughn to Deep Purple, Whitesnake, Alter bridge and Circus Maximus - and the LiF music
And that can all change before next week...hehehe.
But if you ask me about the game, it is quite easy - what ever the style the game is in.
Like for a Medieval game like Life Is Feudal = Medieval and folk music
But this also has to do with the fact that I like to keep the music on low when I play - as it ads to the emotion and the experience of the game.
For me personally that is