How would I describe the musical tone colour in the song "Pompeii," by Bastille?

Musical tone color, which is also known as timbre, is the quality of sound that is not frequency, amplitude or duration. At its simplest, musical tone color is the thing that allows listeners to identify a sound as being an instrument. For example, an oboe is going to sound different from a trumpet, even if they are playing at the same frequency, duration or amplitude. Consequently, an instrument has a musical tone color.

In the song...

Musical tone color, which is also known as timbre, is the quality of sound that is not frequency, amplitude or duration. At its simplest, musical tone color is the thing that allows listeners to identify a sound as being an instrument. For example, an oboe is going to sound different from a trumpet, even if they are playing at the same frequency, duration or amplitude. Consequently, an instrument has a musical tone color.

In the song "Pompeii," the band Bastille utilizes synthesizers and electronic equipment, but the driving musical tone color is the drums. The song is anthemic and driving, with vocals coming to the front, but the drum is the musical sound color that characterizes the song most heavily. A listener gets the feeling they are running either towards or away from something because of the deep, pulsing drums.