Almost all of the music in World of Warcraft is orchestral, with a wide variety of classical and folk instruments in harmony, often playing widely transformative, non-repetitive melodies. While the player is in game, music is usually playing from a set of tracks composed to match the mood of the type of environment your character is in such as "mountain", "forest", "plains", "jungle", et cetera; while some individual zones and cities such as Elwynn Forest and Thunder Bluff are given their own set of tracks. Some environments play different music depending on the time of day you are in them.
What style of music is played in the World of Warcraft game?
Most of the music in World of Warcraft is orchestral, with a variety of classical and folk instruments in harmony.