"African-based music normally has as the fundamental meter: both 2 and 3 at the same time. This opens the door to syncopation, polyrhythms and musical creativity, which occurs on a more primal level in the brain than harmony. It is acknowledged that Europeans developed harmony further than any other culture; but rhythmically their culture is among the planet's most primitive."
"Put simply, marching (colonizing) cultures see the downbeat as something to follow, and the "marched-upon" (colonized) cultures see the downbeat as something to react to, using the backbeat."
http://www.bobbrozman.com/tip_rhythm.html
http://www.youtube.com/watch?v=7oPXRWRxda8
Additionally, the majority of western music is now performed in equal temperament which adds to the blandness. As hackers you may find the math of music interesting..